I feel that my obsession may change soon. My ocd has been all over the place with different things today, cheating, pedophilia, homosexuality. Definitely distressed. What do I do?

Look up the concept of core fear in OCD. Dr. Michael Greenberg has a good article about this. Much of the time you can trace any obsession back to a core fear you have. So if you do exposures based on that core fear and then fight the compulsions, it may help to take care of all the various angles OCD is trying to through at you all at once.