2 years of expereince + you deployed Aruba switches I think you will find ACSA a piece of cake,
to build a rock solid basics for Aruba switching I would recommend you to
1 - go through official cert book
https://hpepress.hpe.com/product/Aruba+Certified+Switching+Associate+Official+Certification+Study+Guide+HPE6-A72-Hardcover-19378
2- do the free training from aruba called "ACSA Fast Track (Cisco) eLearning + self-directed lab"
https://www.coursera.org/learn/aruba-cx-switching-for-cisco-professionals
if you re partener you can get labs slides and labs from
https://inter.viewcentral.com/events/cust/search_results.aspx?cid=aruba&pid=1&lid=15&tstamp=1625221170954&event_id=633&postingForm=catalog.aspx