Because of my personal life my career life is failing.My Girlfriend getting married to a "null pointer" by next month and I can't concentrate on any of my stuff. I have started a startup recently I am scared of losing it.

Welcome to devRant!
Ranting here once in a while can help focus on your work a bit better (that is, if you don't scroll through the feed for long after ranting) :)
Don't let imposter syndrome get you either. You ain't a null pointer.

@kescherRant couldn't have said it better myself