I don't know who needs to hear this, but most things in life are way more achievable than you think. If you decide what you want, and go after it with full effort and intensity, the world will bend to your will far more easily than you might think. You can just do things.
The quicker you act on realizing you have to attack life, not let it happen to you, the quicker you enjoy this journey versus wasting it on stress, anxiety, and worry
Readiness is not a feeling. It's a decision.
The voice in your head that says you're not ready is not protecting you. It's just stopping you from finding out what you're actually capable of.