To stop worrying about it will require worrying about it a lot first.
Growth comes at the expense of previous comfort or safety.
I have some easy rule-of-thumbs to follow:
1. whatever excites you, go do it
2. whatever scares you, go do it
3. every time you’re making a choice, one choice is the safe/comfortable choice - and one choice is the risky/uncomfortable choice. the risky/uncomfortable choice is the one that will teach you the most and make you grow the most, so that’s the one you should choose.
Sometimes the hardest part can be to persuade the others involved in that decision. But if you can’t, just go away and do it alone, it will be worth it anyway.
A really interesting inside look at Khan Academy's teaching style and vision of the world.
This guy has a natural talent for speaking, great vision of how learning works and how teaching should work. This could really be a game changer in the future. And I am sure the MIT Club of Northern California will not disappoint you with the quality of their questions.
It’s rather long but if you liked the previous video I posted you really cannot miss this one.
If you don’t fail at least 90 percent of the time, you’re not aiming high enough.