I was good at math until Cal III when I hit the wall. I’ve forgotten almost all of what I learned, though. So I’m not really good at math anymore. Unless you enter certain career paths, most people won’t need to use advanced math in their day-to-day. I bet you’re good at some non-math stuff.
I totally get that.
Check out Textpad. You might like it. The only nuisance with it is the default config settings are a little oddball (things like keyboard shortcuts, etc). But it’s highly configurable so you can set it up the way you like and then it’s good. It has more features than Notepad, but it’s still pretty simple and can do cool things like search files / folders for strings, has regex support, etc. But the extras stay out of your way and it’s pretty clean and simple for “notepad-like” usage.