If you mean what you write literally, talk with your counselor and talk with folks at the 988 phone number.
Otherwise, you have to deal with the consequences of your actions one way or another; there's no other way for any of us. I think that's one of the few things that require just sucking it up and making the best choice you can about dealing with the consequences.
*****
A reco for counseling: make 'changing from betrayer to good partner' one of your goals.
A further reco: give up trying to control the outcome. You have a lot of control over what you do. You have virtually no control over your BS. If you change from cheater to good partner, maybe your BS will choose R, maybe not - but whatever he does, you'll be better off. If R is your goal, and he chooses D, you're not better off than you are now.
*****
It was very late in my W's A that she realized I might dump her. I'm an outlier in that I was still limerent after 45 years together. I still lusted after her. But realizing I might leave was a step forward for her, because I very seriously considered - and figured out - how I could live a good life without her.
Again, you can't control your BS's D/R decision. You can redeem yourself whatever he chooses.
*****
Changing from betrayer to good partner is one way of reducing your pain. In addition, it'll prevent taking on more pain. Other than that, IMO, the way to reduce pain is to feel it, letting it course through and out of one's body. A good therapist can help.
Don't expect quick results - you've got lots of pain to release, and that means a lot more work and time is necessary to release the pain. Besides, healing (almost?) always takes longer than one wants it to take.
*****
Have you been reading in the 'Wayward Side' forum? If not, I recommend doing so. The threads can teach us all a lot.
fBH (me) - on d-day: 66, Married 43, together 45, same sex apDDay - 12/22/2010Recover'd and R'edYou don't have to like your boundaries. You just have to set and enforce them.