The majority of a founders job usually revolves around finance. I really recommend that you spend the time to become really comfortable talking about your balance sheet and P&L.
You don't need to be an accountant, but just understanding the definitions of things like Revenue, Cost Of Goods, Gross Margin, ebitda, these things will become a part of your vocabulary pretty quick.
Literally 1 day of googling and you can have the basics. Or run through a course like this:
https://www.coursera.org/learn/finance-for-startups