Dont want to think about it

Not really sure where to post thisSo, i keep thinking about this sexual experience i had with a dude when i was 19. At that time i was really confused about my sexuality because all the experiences i had with girls didnt go the way i wanted them to (i thought it would be like porn). So, i downloaded a gay dating app and went over to this guys house. My intention was to see if i would enjoy giving head or not. While i was doing it (god just typing this makes me cringe) he tried to touch me but i wasnt hard at all. Honestly i just wanted to see if i would like doing it. It made me feel like shit and now ever since then ive been feeling this way. However, i had some really good sex with a girl after ditching porn for a while and was actively searching for more girls since i stopped watching porn. So, porn is my trigger to those negative emotions. however even when i stopped watching porn i still thougt about that negative experience i put myself through. Its not cool, really makes me feel like shit. I feel like that thought holds me back from things i want to accomplish. I feel like it stops me from being myself.So how can i ditch that thought and not look back? I really juust want to move on with my life.