is anyone else's obsession like a constant problem they have to fix or think about? like i would be sitting and then be "reminded" that i have this "issue" to figure out

i’ve been dealing with this “thing” since i was 15. (i’m 23 now) if i have a bad memory that i have done when i was really young or just an intrusive thought i feel like i need to tell my mom or boyfriend. it’s been on and off ever since but since January hit it’s been an everyday thing about the littlest things. mostly about my relationship. an example is i was talking to someone random at my job and we were talking about taxes and when im in deep thought or just thinking i do a thing where i bite my lip (not in the sexual way) and i had a thought when it happened “was that sexual?” and i felt like i did something wrong and i went for a while thinking that until i told my boyfriend about it. or like my ex’s face has popped up in my head in the most inappropriate times and i feel the need that i have to tell him. (my ex was not a good person) i feel like im a prisoner in my head everyday, trying to justify thoughts or remind myself that its just a thought. i didnt know that this was or could be a form of ocd. it runs in my family but i’ve just never considered it being this. i always called it anxiety or depression but i always felt like it is more than that.

Im just wondering…how many hours a day do you spend thinking about your fear. I spend around 3-9 hours or sometimes more thinking about sexual orientation but i still doubt that i have hocd. I feel like im just in denial and im so scared.

Does anyone else get fixated on one “topic” with their ocd?? like for me trains and guns are mine. like i’m scared of trains and im scared to be around guns because that’s what triggers my ocd and makes me convince me that that is the way to go. i literally worry myself into thinking im going to sh*t myself when i don’t even have a gun but my ocd convinces me. idk if im explaining it good, but its a real struggle. just need some tips & advice