Excuses, excuses, excuses...I could never do that, maybe I'll try that in a few years, I wouldn't know where to start, sound familiar? If everyone made excuses for why they can't do something, nothing would ever get done. You have to learn to be a self-starter, take initiative and stop being so fearful of the unknown. Life is all about taking risks and learning from your failures.
We are all capable of doing new and scary things, you learned how to walk didn't you? You survived and you probably wouldn't be where you are today if you didn't go for it. We do new things everyday that continue our development and progression in life, some larger than others.
If there is something you have wanted to do or try, life is short, go for it, try it, surprise yourself and enjoy it so much you want to do it again, or fail and learn from that failure, pick yourself back up and tackle it from a different angle next time..
Don't sit and watch everyone else pursue their life goals, live up to their full potential and accomplish everything they had every dreamed of from the sidelines, Excuses are mental obstacles that are used to justify a reaction to something.
Excuses will always be there for you, opportunity won't. Get out of your own way!