In my opinion, the two best ways to significantly improve your writing, are to are to write more often and read more often.

Immerse yourself in the written word by consuming it constantly. Then find your voice by constantly producing written work.

It sounds simple, and to an extent, it is, but it is far from easy. It takes time and effort, but it is well worth it.

I got into a loud verbal altercation with a teacher at one point who insisted I was asleep while I was arguing with them.