Overthinking is a thing. The next time you have it, before an interview or life problem, remember this:

1. We are all hardwired to think more about the bad, than good.

We are all afraid about, “What will Sharma Ji ka beta achieve?” or “Will people laugh at me?”, hardly being aware of the fact that no one is actually thinking of you in the first place.

2. Our mind focuses on possibilities. Not probabilities.

Is it possible that you’ll be fired: YES
Is it possible that you’ll not make it through the interview: YES
Is it possible that you will be poked for someone else’s mistake: YES

However, what is the probability?

Each time we step out, there is a possibility of getting hit by a bus. But we still step out fearlessly, right? How come?
Because our brain knows that the probability of that is low.

That is it!
The way to “solve” overthinking.

Make your brain aware of the probability of what disturbs you! 

Realise you are not alone in thinking of the bad more than the good.
And realise that when YOU are convinced that the probability of that bad thing is low, your mind will automatically be convinced.