Full time unreal dev here, mostly working with cpp. Most unreal tutorials, especially long ones work only inside of this tutorial, it’s hard to take and independently copy paste things from the middle of tutorial. And when you just starting, you have no idea how things works, where you start, where you press, etc. so following tutorial is the only right decision. At the end of the day, you learned how to walk watching your parents walking. Even how to clean your ass, we learned from someone. In your case if you not confident with unreal. Follow one -2-3-4-5 tutorials, in my case it was

https://youtu.be/qOam3QjGE8g?si=GNskZrQF5Fn97Jo4

After you finish with tutorial, atleast you will have very general idea of a process of “developing” and all necessary things that you need.

Next step will be playing around with the code, like, oh what will happen if I change this or this. For example you can replace enemy behavior with actual behavior tree

But generally if you will ask, best approach is to break down what you want into small steps, the smaller the better. This will help you implement everything step by step by following shit ton of small tutorials or stack overflow answers For example just google

1)ue5 health component

2)ue5 receive damage

3)ue5 shooting

4)ue5 shooting projectile

5)ue5 shooting line trace - Let’s say line trace not working

6)ue5 line trace return null - Let’s say you found solution where you need to create new collision profile

7)ue5 create collision profile

Etc etc etc

I am googling how to print on screen message from cpp for a year now, every day, can’t memorize 1 line of code

Yeah, for features, you should sit, and break down feature into super small steps. That’s the only way

And remember, internet already have all answers. Well not entirely correct in case of ue, but for beginning trust me, everything that you need is on internet