Everyone who is doing what you are doing was like you once or even worse. 

They took the leap.

Committed to doing what mattered

Took action

Experimented

Failed, 

Learned

And stuck through

And eventually became who you aspire to be.

You have the same choice they had.

To sit back and watch people go past them.

OR

Get up, test out ideas and see what works and what sticks and win.

They took the harder path of taking action and then stuck with it.

So stop waiting, and preparing. Just do what you want to do and make your own luck.