A post like this makes me question myself. How do I know when it's right to declare a business failed? I joined another person on a startup about six months a

A post like this makes me question myself. How do I know when it's right to declare a business failed? I joined another person on a startup about six months ago. We have one client and it might start expanding, but then again, we are two months past our expected initial launch and at our current rate we won't be launching until January. He has been getting more excited, but I have been getting less excited. I'm pretty sure I want to pull out because our delays seem to mostly be due to poor management by him (it was his project and is his baby) and I don't really trust it in the long run, however there are some other factors. I see our growth plateauing when he runs out of friends who he can convince to pay us, and I am not enjoying working with him. I get frustrated when people seem to be saying I should just stick it out. Am I just a wimp who is fleeing at the first sign of trouble? Am I just getting jitters about the amount of investment? Or am I wisely investing my time in other activities that will grow my career in other ways? I don't want to invest three years of my life if the warning signs are all there. I think my saving grace may be that we haven't formally set up a vesting strategy, so I could exit full participation and become an early investor instead. Our lack of paperwork is another one of the warning signs.