Hocd/confused sexuality

Hi all. I just wanted to share my story and see if anyone has a similar situation and has any advice. So, i remember having my “sexual awakening” to seeing a naked girl in a tv show when i was like 6 or 7 years old, and all throughout elementary i remember having crushes on girls. However, i hit a point in my life where i think i stopped developing crushes on girls at age 13 or so. I am 19 now, and to this day i don’t think I’ve experienced extreme romantic feelings towards anyone since. Also, throughout my teenage years i think i have started to be more attracted to the physical bodies of men, but mostly what i see online, like on porn or instagram. I stopped watching porn over a year ago but these feelings remained, like if i look at a male Instagram model i get an erection. I haven’t experienced feelings towards any men in real life, so this is why I’m confused. I’m wondering if watching porn led me to be attracted to guys on screen?? Also, i suffer from hocd which i am trying to get over. If anyone related or has advice, plz respond. Thank you