How can I know if I have an intrusive thought or if it's a part of me?

Help! My OCD has caught onto this thought for awhile and I keep spinning on it. I know you are supposed to follow your values and what your actions suggest with OCD, but what if that is even blurry right know? For example my whole life I wanted to be with a man, and now my OCD is having major intrusive thoughts about women. How do you tell if those thoughts are wanted or not? I can’t figure out if I like the thoughts or not. I’m trying to live the life “I want” but what if I don’t know what that is?

for me, it's like there's two folders of my thoughts, 'main thoughts' and 'sub thoughts' and it's like a background voice of my background voice, you know? like so quiet and irrelevant but it's still here and i can try to ignore it but not fully and it feels like it's just really nasty, like it's warring with me, never shuts up and just keeps nagging me with those thoughts

Please how can an intrusive thought be distinguished from our own thoughts ?