Just A Thought:

Everything will be all right in the end. If it is not all right, it is not yet the end.

Paulo Coelho

I've left this quote here because I'm using it as a personal mantra, and I've found it helpful.

Three Things For You To Think About

Every confident person still feels insecure.

Every successful person still fails.

Every happy person still struggles.

Don’t mistake outside appearances for internal realities.

Tiny Thought - Nine Sources Of Advantage:

Raw talent/intelligence - Some people are just naturally better and smarter.

Hard work - Some people work harder.

Differentiation - Seeing the world differently. 

Doing something different - Reading different books. Interpreting the same information differently.

Process / Discipline - Creating a process and following it. Working out every day is a great example.

Talent Collector - The ability to hire the best people and get the most out of them.

Patience - A lack of patience can significantly alter the outcome.

Ability to take pain - Are you willing to look like an idiot to get better? How much risk are you willing to take, AND, importantly, can you handle the losses?

Temperament - Keeping your head when everyone else is losing theirs.

Luck

Most of these are within your control.