So I'm still having weird thoughts and don't know what to do, any help?

Ok so im 18 male and i think im Bi, ive had gay feeling s for a few years now and at first i thought it was just a faze, but the feelings have only gotten stronger over the years, i had a crush on my best friend for about a year or so before i decided to do anything about it, so we both decided to drink a little, and we both were not drunk at all and we just pretended to be drunk, longer story short we did "stuff" and now we still hang out and just pretend we both don't remember, and i thought it was just a faze like i said earlier, i even tried dating girls but they never lasted cause i couldn't get him off my mind. I just don't know what to do, any thoughts on how to forget and just move on? Or should act on my feelings?