My bad past memories keep bothering me, what should I do?

I’ve had fears when I could have had a permanent injury or physical disability or becoming an amputee and never being the same anymore. I feel like my present life could have been a lot worse than it is now. Also, I missed out on good opportunities. I feel like therapy and counseling won’t help. I feel like there’s no cure for my mental health.

I almost want to commit suicide.
My bad past memories keep bothering me, what should I do?
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