My past is haunting me what do I do?

It’s my bad memories of the past and memories I wish I could forget but I can’t ever get over them. My present life could have been worse than it is now. I almost feel like a therapist or psychologist would have to look inside my brain and read my thoughts whereas it’s almost like I have to use a lie detector test on myself. It’s almost like they have to pretend I’m deaf.
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Sometimes I almost feel like committing suicide. I wish to escape my thoughts of suicide.
My past is haunting me what do I do?
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