welcome!!!
At 22 I had already had many blackout drunks and loads of heavy heavy drinking times. I also was able to hold it together and didn't drink all the time.... wasn't daily... etc.
Gave myself lots of "evidence" that it was all normal and not a problem. Now I'm 41 and finally serious about sobriety.... two divorces, two DUIs and tens of thousands of dollars later. Maybe even hundreds....
I think you're really blessed to be looking at this the way you are at your age and I truly believe that your life ahead will be far richer in sobriety.
wishing you the best!