If you're worrying about something, one of two things is going on --
1. There's a good reason for your worries, they're justified, and you can potentially affect that outcome. If so, do something.
2. There's no good reason for your worries, they're not justified, or you can't affect the outcome. If so, stop worrying.
Easier said than done. But idle worrying does nothing of value. It makes you go crazy and doesn't make things better.
It's impossible to have perfect control of your thoughts, so worries emerge. When they do, investigate them, figure out if they're justified, figure out if you can do something, and then make a plan or let them go.
It's not quite fair to write a post full of optimism and entitlement and then not follow up on it when I'm proven to be wrong. So here it goes: we didn't get an interview with Y Combinator.
I still think we're exactly what they're looking for, whether our application accurately conveyed that or not, but the fact is that we got the rejection letter today. I wasn't quite sure we'd make it past the interview round, but I never really considered that we may not get an interview.
Surprised as I am, there's no point in dwelling on the outcome, so this is the last you'll hear me mention YC until we become a company they wish they invested in, at which point I may or may not reserve a sentence to gloat.