I'm new here too.
I can definitely sympathise with you. I have ocd and I obsess over things to do with my son and other things (such as I feel like a failure, etc) and I have intrusive thoughts.
I am currently having cognitive behavioural therapy and it is helping slowly but it is very hard because you are forced to face your fears. I was on medication for 5.5 years but I recently came off it and I'm hoping I can stay off although I'm still unsure if I will manage that.
If you would like to chat feel free to get in touch xx