So then it’s okay to delete the rest of the stuff with the exception of the restore points? Sorry, I am not well versed on what to keep.
Well, I don't want to give you advice that doesn't work in your particular situation. Without knowing a lot of the details about your particular system, and what "clean-up" tool(s) or commands you want to use, I'm leery of saying "Yeah, it's okay, full steam ahead". Every system and situation is a little different.
What tool are you planning to use to delete stuff?