unsure if i have OCD

It's understandable to feel unsure and overwhelmed when trying to understand your own experiences. If you suspect you may have OCD, it's a good idea to seek professional help when you are able to. In the mean time, there are online resources and hotlines available where you can learn more about OCD and find support. It requires you reading a lot of articles and trying to narrow it done to what your OCD type might be. Additionally, libraries often have books on mental health topics that you can borrow without drawing attention.

I didn't know I had OCD until I learned there are many kinds of compulsions- I though contamination fears related to germs and disease was the only kind. You've mentioned you're already pretty sure, I would research the types of OCD there are and compare further with that! Some include sexually intrusive thoughts, relationships, perfection seeking, fear of harming self and others, etc. 
I follow this OCD specialist/therapist who dies a good job of listing out possible types of OCD, you could look through her page! https://www.***.com/alegrakastens/?hl=en

But most important is seeking the help of a therapist, because treatment plans are so important. And if you are interested in pursuing therapy to help with your OCD, some are far more helpful than others. I hope you're able to find some answers! I remember being so relieved when I got diagnosed, it felt like the thoughts in my head could finally be managed instead of feeling like thats just going to be part of who I am forever.