There is no need to be afraid, because you have free will and you control what you think and do.  You can act for yourself and not just wait for things to come up and happen to you.

If you understand what can come up in your life and have a plan to help things go well, then you are in charge of anything you are faced with, instead of it being in charge of you.

"Only when we are no longer afraid do we begin to live." (Dorothy Thompson)

If you are concerned about something, one thing you can remember is that you always have options.  You can choose to prevent problems and prepare for things which are likely to come up in your life.  That way you can feel ready and able to handle things well.  Also, the fact that you can learn from things makes life very worthwhile.  Your life is very important also, because you can do a lot to have a good impact in your own life and the lives of others.