Very much agreed. It sounds like OP is a bit burnt out, and I had much the same thing - I said to myself I'll do my own thing, I've done the hard yards, I'll just sit down to think of something, got a few good ideas... time keeps ticking though, and unless you have endless cash, the bills will keep rolling in. Discipline and focus I guess is pretty important to doing the solo thing.
It's easy to forget the plethora of shit jobs out there once you've been doing software development/ops/IT for a while. Sure, its painful, and some companies more than others, but I agree with another poster that often it's more what you put on yourself versus what's forced on you (at least in my case I think that was often true). I guess it's vital to look for that work/life balance and a company that will offer that (not just lip service); or do your own thing, but that can be pretty hard work too - it's not just coding then, it's all the roles, even the ones you hate.
If there were an easy answer, we'd all be doing it.
[edit] added bit.