Why do you keep waiting? If you can start things today. Probably it is because:
1) You really don´t want to do it.
2) You are afraid of failure.
3) You think you don´t know enough.
Let me tell you this:
If you want something, pursue it! If you are driven by passion you can do everything you want! ALWAYS
If you are afraid of failing, everyone has failed at least once in their lives, but thanks to that they have learned. TAKE RISKS
You are never going to know enough. Life is a continuous learning.
So…stop thinking you should wait a little bit longer.
Take risks and start today 🙂