Call the cops and CPS every time he assaults you.
Your parents allow entirely too much violence when you are in their custody. Either you or your brother must live elsewhere starting ASAP.
Show the list below to BOTH parents.
While they read the list or ignore it, call the cops and then CPS to report today's assault. Tell both the cops and CPS that your parents routinely fail to protect you from your brother's assults.
The child needs to experience some hardships and some "natural consequences." Start making the kid play a team sport EVERY TERM. That will leave less time and energy for tricks and stunts. (Throw in a musical instrument and a foreign language if you can afford lessons.)
Educate yourself about the Kazdin method for handling DEFIANT children. Alan Kazdin wrote the book The Kazdin Method for Parenting the Defiant Child: With No Pills, No Therapy, No Contest of Wills. In addition, read 1-2-3 Magic about disciplining difficult kids age 2-12 years. (See also How to Talk So Little Kids Will Listen by Joanna Faber and Julie King. It works on adults too.) There is also Nigel Latta's Politically Incorrect Parenting: Before Your Kids Drive You Crazy, Read This! Or try Parent Management Training (PMT): https://www.coursera.org/learn/everyday-parenting and see wikipedia.
Or send the child away to wilderness camp or boarding school or residential treatment.
[I left home at age 15 years, and it was the IDEAL stage for me to begin honoring myself and my own personal preferences outside of my parents' religious fundamentalism.]
Young people become more grounded by hiking and camping away from the distractions of modern life. After weeks outdoors in the wilderness humping a backpack, eating trail mix, and pissing behind bushes, THEY APPRECIATE THE COMFORTS OF HOME. (Recall how much you loved your childhood bedroom after freshman fall term in the dorms?)
NOLS wilderness classes are well respected at 16+ locations worldwide. Consider Outward Bound's "intercept" program (cheap, zero abuse). Wilderness therapy programs AND residential treatment centers for teens are discussed on reddit.com at /r/troubledteens (very expensive, higher probability of abuse). FOR EXAMPLE, True North Wilderness Program in Vermont has been deemed non-abusive by redditors who attended as teens. It is for people ages 14-17 or 18-25. True North is not an academic program. https://truenorthwilderness.com
Elements Wilderness program provides wilderness therapy (hiking with a backpack and counselors for 2-3 months) to male teens AND fe/male young adults over 18 who have psychiatric problems. https://www.elementswilderness.com/
Pure Life Adventure (by Aspiro) takes teens and young adults to Costa Rica for hiking, surfing, meditation, and therapy regarding depression, drug use, etc.
Blue Ridge Wilderness Therapy combines hiking and drug rehab.
YMCA summer camps get kids out of the house while next steps are planned.
The National Guard's "Youth Challenge Program" helps boys and girls ages 16-18 years (physical training and GED education; start
https://youtu.be/Qk2xx8qH53k ; end https://youtu.be/UyfAm7rkGAA ). More than 120,000 HS students had completed that program by 2015, said CBS News.
Troubled high school dropouts and teen addicts aged 16-18 can earn a GED at Florida Youth Challenge Academy. It is funded by the government. Over 25 other states have similar programs. https://youtu.be/qcR30zesksk
Inspirations teen rehab is in Fort Lauderdale. The group meetings have inspired redditors to stay clean of heroin.
A military school like Culver Academy in the midwest could instill discipline and self-reliance in a teen boy or girl. (It is a rich kid military boarding school in Indiana. No child abuse. It feeds grads into Harvard and Stanford. Students wear a uniform and a military haircut. They learn to shoot a gun and ride a horse and swim strongly and ace the SAT / ACT. Wealthy kids from Israel and Saudi Arabia win all the marksmanship medals, though.) Camden Military Academy and Marine Military Academy are solid, too. Parents of badly-behaved teen boys have been dumping them at all-male military boarding schools like Fork Union since the 1800s. https://en.m.wikipedia.org/wiki/Fork_Union_Military_Academy
An expensive Wellspring boarding school in Bethlehem, CT ("The Arch Bridge School at Wellspring") treats children with behavioral, psychiatric, and emotional health issues. http://wellspring.org
The Grove School in CT claims to do the same, but search reddit for the honest truth from current / recent students about sexual harassment between students there and the quality of the college prep curriculum.
Troubled boys age 9-15 are admitted here. http://www.littlekeswickschool.net/
Counselors at the Center for Discovery (CFD) in Stamford, CT addresses mental health problems like anorexia, self harm, suicidal ideation, and depression. It is a residential facility for teens.
The Mendota Juvenile Treatment Center serves teenage male psychopaths in Madison, WI. specialty: conduct disorders
Bayfield outside of Toronto is a Canadian boarding school for kids with behavioral problems. It charges $21k per year. Much individual attention is provided to students by teachers -- even if an upset kid is decompressing in a hallway outside of his classroom.
Redditors discuss cool camps in Canada here.
There are also therapeutic boarding schools in the UK. http://best-boarding-schools.net/therapeutic-boarding-schools
Avoid institutions on this list! http://www.heal-online.org/warn.htm
Avoid Teen Challenge programs.
Avoid Utah facilities run by Mormons!
Check out these resources.
THERE ARE CHEAP OPTIONS.
Redditor hangingsocks posted this on March 6, 2020.
"Our kid started that shit when she was 15. Stealing cars, drinking, light drug use, sneaking out, sneaking a boy in...We packed her up over summer and sent her to different countries, a really shitty camp she hated, (it was a camp in Spain that she taught English for 14 hours a day and only cost us the flight yp get her there) basically let her be home less than 2 weeks worth of days the while time. Told her if she continued ruining our home, she would be digging toilets in Panama next time. She turned it around."
https://www.diverbo.com/ -- These language camps abroad cost airfare plus $400.
A shrink should assess the child for bipolar issues, ADHD, oppositional defiant disorder, schizophrenia, etc. Better to get the right cocktail of prescribed medications before drugs and alcohol are used to treat the demons. Rx drugs can be blended into smoothies or dissolved in grape juice if the child refuses to be dosed. Ask the defiant kid's psychiatrist if Risperidone is an appropriate treatment.
The kid may be a sociopath or psychopath who is bound for prison regardless of your efforts. It is only a matter of time until the child can be tried as an adult and can be sent to jail or prison.
Getting a violent or predatory child away from victim siblings is crucial. Do it before CPS removes the violent or predatory offender and puts them in foster care or in juvenile detention.