Huge thanks to Firebelley Games for the amazing course. Anyone interested in 2D game development with Godot should check it out!
Here it is: Create a Complete 2D Survivors Style Game in Godot 4

I don't plan on updating this, but eventually I might try to implement steering behaviors so enemies stop bunching up so much (must learn to do that first). Otherwise, I'm pretty happy with how the game turned out! Though I followed the course pretty closely, I did add about 15% of content on my own AND made it work which is huge to me. It's my first full-fledged, decently-sized project ever. Hoping it's the first of many.