The key to self-motivation is setting goals. Without goals, it really doesn't matter how self motivated a person tries to be. They have to know what it is that they are motivated for.
There must be a reward or benefit for it to be motivation. That is what drives us as humans. Without this factor, there will not likely be success in self-motivation. That is the reason why it is very important to make a list of goals. This first step will get you started in the right direction to achieving self-motivation.
Imagine this: You came to the meeting thoroughly prepared, ready to give your best. While giving your presentation, somebody cuts you suddenly in the middle, asking some silly questions. It could have been easy for you to throw a counter-punch, a silly answer. Trouble is, that silly person is your BOSS. What a tough situation!
So how do you stay calm, composed and maintain self esteem in a tough environment?