Well, it’s all a preference. If you have no idea where to start, you can try to find some templates. You’ll end up with your own style anyway.
I like the approach DevDuck showed in one of his videos and I’ve tried implementing it ever since, maybe it’ll fit you as well:
Separating out scenes/scripts into different structures becomes very confusing with larger projects in my opinion. I do believe separating out assets is very useful however.