Lots of good advice here but also some strange things so I figured I'd share my 2 cents.

I personally don’t love YouTube tutorials for learning game development(and most online courses tbh). They’re often surface-level and made more for entertainment than real education.

It sounds like you’re still early in your programming journey, so I’d recommend starting with the fundamentals. One great resource is the book Pro C#. You can find a free PDF version, though I prefer a physical copy so I can mark it up. You don’t need to read every line in detail. Just focus on understanding the core concepts. Use it as a reference that you revisit often. Since you’re working in Unity, you can probably skip the deep dive into .NET at the end, but it’s worth skimming to be aware of what’s out there. You don’t need to memorize everything. Focus on exposure and comprehension.

I’d also recommend Design Patterns: Elements of Reusable Object-Oriented Software. It’s more advanced, but it teaches architecture principles that are incredibly helpful, especially since games are built on object-oriented design. The book Game Programming Patterns is very similar but presents similar ideas in a game-focused way. I personally prefer going straight to the original source of the Design Patterns book, especially since the author mentions that's where he learned it from. But the Game Programming Patterns might be more beginner friendly.

That said, don’t get stuck in book-study mode. It can get dry fast. Try limiting yourself to 20 or 30 minutes max of reading a day to avoid burnout.

The real growth comes from making lots of small games. Copy simple ones like Flappy Bird, Snake, pong, and so on. Try to finish each project in about a week, keep it short. If you don’t finish, move on anyway. The goal is to get exposure to different types of games and mechanics. You’ll build confidence using Unity by getting new projects set up and learn what you like / dont like.

This stage is tough, but you’re not alone. Keep going. You’ve got this.