I feel for you, Dave-Man. On balance, however, I don't think you are alone. Actually, I think you're an Everyman.
I'm at a point in my life that I don't need to blow smoke up anyone's...well, you know what I mean. (For the record, I never did. It just wasn't my style.). But I'll tell you, my friend, you have a stunning and unintentionally chilling and gripping, very Hemingway-esque and if anyone hasn't read Hemingway, all it will take is reading a few pages of The Old Man and the Sea to understand what I mean lean, to the point and generally shying away from polysyllable words. It's a style foreign to my own writing and perhaps that's why I'm drawn to it when I read it.
My point is, I think you've got a story to tell and one that a lot of people would relate to -- very Orwell 1984. I'm not sure where the story would go, but that's okay because it's your story; not mine.
Look, I get that unsolicited advice is kind of like virginity -- a gift often more prized by the donor than the recipient. But I'd suggest you start keeping a daily journal, aim for getting three our four hundred pages written, then submit it to an agent.
Good luck and keep on keeping on. It takes a warrior to survive the kind of life you describe...and imo there are a lot of warriors out there waiting to find out they're not alone.
