AnAussieBloke, you're a good dude. You deserve better.

There's plenty more fish in the sea. I know you will find the right person for you.

I know it's hard right now but you have so much life left. Cut the ties. Surround yourself with good people. And work step by step to achieve happiness. There may be a lot of steps but if you take one seltep each day, you will eventually get there.