I think im sex repulsed but idk how

I am 18 m and i have never been in a situation involving physical intimacy, ive had a relationship but never been at that stage, but when i think about it, or imagine it, i always feel really odd and put off the the general idea of doing it, idk if this is because i grew up in a household where it was talked about in a very gross way where i have a wrong idea about it or not. I also have before watched “content” but for some reason it’s different when i think about it myself. Like 2 years ago i labelled myself as asexual but i eventually stopped labelling mysekf because im young and i dont have any experience to even base that off of

https://redd.it/1x8b98w
@asexualityonreddit