Hey Penny, Welcome to the fam.

. Happy you found us as a resource. But, sorry for the circumstances that bring you to us.
No one can tell you what to do obviously. What I will offer up is that you do continue to vent. Ask questions, engage, and try to let go of some of the weight that is sitting on you. This is a tall order for anyone to take on.
For the record, I am divorced and my ex wife did cheat on me so I certainly can understand how you feel and what you may be going through. It isn't easy. I'm glad you have a counselor/therapist though. That will truly go a long to helping you in the long run.
Please continue to post and definitely feel free to post a journal. Whatever it takes to help put you in a better and healthier mental space.
Cheers and best wishes!
-SC-