I have heard that sexual contact/activities are a means to 'connect'; as humans we yearn for 'connection' with others. You may want to explore other ways of connecting with people.

I can relate to your 'obsessions', etc. There are times when I have it too; when it's all I can think about....I think it's when I lose my connection with my inner self....and when I journal...and reconnect with my feelings....the compulsion dissipates.

Seems you need to connect with someone with whom you can be your real you....inevitably, the only way to have a real connection with another...is to first connect with ourselves...self-awareness it is called...and working with a therapist on that goal...is a worthwhile pursuit...

Best of luck to you!