I once told a room full of people that all good business have similarities.. They all require attention, commitment, consistency, and for you to master your own weaknesses.
It doesn't matter whether it's an online business, a brick &mortar, or if you're starting a new position . The success depends on you and how much you able to master yourself in it.
You also have to understand which phase you are in so you can consistently motivate yourself. Never discourage yourself because the reality is some systems or programs where already designed for you to Win! All you have to do is give it your best try.
Doubting yourself is like punching yourself in the face when your in a fight with an kickboxing opponent.
It's better to be a person who sees opportunity for improvement than a person who focus on all the opposition along the way.
Have an entrepreneur spirit to be the best self starter you can be.