Blackouts happening after the worst hangover of my life

I have always been a heavy drinker. Even in high school i was known as the one with the most tolerance. One time i drank like there was no tomorrow and experienced a bad hangover for the first time. Ever since then i have this agitating feeling towards alcohol and suddenly i was prone to blackouts? Damn blackouts are crazy. I keep saying and doing wild shits and i dont remember shit the next day😭 One time i kissed another guy while on a first date with a guy cuz i had no control. How do i prevent blackouts? Im still in uni i dont wanna miss out on the fun