I learned how to type on a typewriter in a typing class in middle school, early seventies. #OldSchool What helped me get good (but not excellent) was to write

I learned how to type on a typewriter in a typing class in middle school, early seventies. #OldSchool What helped me get good (but not excellent) was to write lots of English. Lots of that was/is email. Lots more than 140 characters at a time.