Life feels like a nightmare I can't wake up from

I am a 28 year old male who has been so severely traumatized by life that I would never wish it on my worst enemy. I truly do not want to live. I'm so sick of people telling me things like "you have your whole life ahead of you" and "It will get better" when it never does. I cannot fathom living to old age. What has made life harder is the fact I'm autistic with heavy sensory issues and have suffered from burnout for many years. All I've ever been is a genuine kind person towards everyone I have ever met and have been treated like a piece of garbage my whole life. Severe family abuse since age 8 has left huge scars on my soul. I am broken. I scream and cry every single day. Life feels like a nightmare I can't wake up from.