It may sound patronizing or kind of mean but it's not meant to come off that way - look into getting a college level book on English. I read a little over half of Teach Yourself Correct English by B.A. Phythian and it helped me to relearn some concepts I lost over time.Grammar most likely average as fukk if that compared to someone who truly knows grammar.
I feel like I have to be at least decent in grammar if I am on forums all day.
Obviously since all of my classes will be writing from now on. I will improve.
As for creative I think I'm good. Most likely we are all amazing with our imaginations and its a beautiful gift because even when you get old you can still create it doesn't take physical requirements. Like how old is Stephen King and hes still writing decades later. It just happens to be not everyone explores their creativity. And for some people its just not in them to sit and write out a story as I found out its not in me to look at some codes.