Fear is eternal, it cannot be nullified it can only be replaced. Therefore if you want to persue your dream you need to take the call. When you have possibility with you this possibilities will automatically replace your fear.

You shouldn't rest untill it is done.

In our life we need to remain open to learn new things as well as unlearn things in order to make progress.
Hope all of us do our bit be it very small to put an impact on Universe and will help to create a better world