Welcome to my former world @Fred8 !
You've used the exact words that I have "I'm sick and tired of being sick and tired"... you know what my therapist at that time said? "Great. This is the time to make changes."
And yes, he was right. When I came to the point of being sick of being sick, I reached out with full openness to make the changes that would get me out of the hell I was in.
I threw myself into therapy, and it was so hard. I pushed myself to make changes that were absolutely against my nature. And slowly, things really did begin to change. It look a long time though. I was in intensive therapy twice a week for just over 18 months. This consisted of a few hours each week - one session for individual 1:1 therapy, and 2 hours of group therapy each week. Group therapy was the hardest because I was 'stuck' with a room of 4-7 people diagnosed with a cluster b personality disorder. LOLLL... I couldn't STAND some of the other people and wanted to leave so many times. But I promised myself I'd stick at it. And i did. Things changed, and things couldn't be better now.
There IS hope 🙂