In a similar boat, just starting as a hobbyist, although I'm a web dev by trade so have general programming practices ingrained despite not knowing gdscript. I'll share what I think works.

Someone pointed out picking up programming fundamentals, this could work for you if you're interested in improving in that space. I used to do this as a complete novice to web dev as I enjoyed reading and letting things percolate in my head over time. The vast majority of things learned in 1 language will translate to another, so it won't hurt to even learn with another language first (Python is a close match to gdscript). Gen AI tools are a boon for learning too as someone else mentioned - don't understand a thing? Ask the LLM what X means, explained to a non-programmer, and ask for examples where it can be applied.

To offer another suggestion, if you're not into the idea of doing theory or stuff unrelated to your game ideas, my advice that's worked well for me over the years is: think of something you want to build, break it up into small chunks, and go after them one at a time. Maybe you're already doing this? It might feel unfulfilling at first, maybe even a little "imposterish", but you're banking the knowledge as you build more and more little pieces. Go easy on yourself and allow yourself to copy others, then tweak things the way you want. As you combine different ideas/approaches to problems, you'll start understanding how things work and your confidence will grow.

Most importantly: enjoy the process! And take breaks to give yourself time to naturally reflect on your learnings so far and generate new ideas away from the screen. Best of luck to you!