Trust expands. Trust yourself to be able to navigate the exact situation you are in right now. You don’t need to think about trusting yourself in the future, you can trust yourself when you get there.
If you commit to trusting yourself exactly where you are, you will know when to move forward. You don’t have to worry about moving forward before you are ready if you trust yourself. The choice to move forward can only happen in the present moment, and when you make that choice, your ability to trust yourself will expand accordingly.