I started by following some YouTube videos. Follow a simple tutorial. At then end EXTEND the game a little with your own ideas. Add a new power up, make a new level, make a new enemy, make a new weapon type, something.

Once you already have an established framework for a working game by following the tutorial you don’t have to worry so much about the bugs. This builds confidence.

Also don’t underestimate the built in documentation and search. I’ve been using godot for 2 years now and I reference the docs almost every time I code to check if a certain method exists, or how to get a certain property.

These videos may be old now, but heartbeast on YouTube had a few great series for godot 3.x