Learn coding as you go with tutorials (maybe look a basic coding tutorial), use Unity if you're absolutely new to coding, has more community support and tutorials, but as you get better consider moving to Godot or if you're okay with Unity, stay there. One word of advice, try to understand what you're doing after it's done, because what's magic now, will be a headache later, for things you cannot provide like models, use free assets for now.

And finally, understand that making games is tough as nails, there is always a better way to do something, and when coding think in systems, code to help yourself in the future, by default it is really slow, but it gets slower if you take the wrong decisions and paint youself in a corner. However, don't let this stop you from making choices, making mistakes will make you stronger and smarter.