I think it really depends on what stage you "fail" and what causes the failure. In my own experience, I was really young and tried something for about 6 months.

I think it really depends on what stage you "fail" and what causes the failure. In my own experience, I was really young and tried something for about 6 months. It didn't pan out because those who I was working with weren't committed to it. We just went our separate ways after and I ended up working as as a senior dev at a bunch of places. I'd love to see data about this, as we always end up seeing only the survivors and their success stories.