The thoughts you are having about this show me that you are at a local maximum, but you will find your way out if you keep trying everything. There is no single thing that will help. Read novels, copy them word by word, translate them, write short stories, dissect stories, stop movies halfway and ask yourself how you would continue them. Read a ton of writing advice, try them out but don’t take it as gospel.

Even if you don’t improve for 100 days straight, small successes accumulate. In a decade you will have transformed yourself.

There is just no way you won’t improve significantly if you keep trying new things and bring yourself to fail ever day.

What helped me was the saying “your first million words are gonna be shit”. I still distinctly remember, four or five years into writing every day, when things finally clicked, my voice came through, and my sentences became fun. It is delayed gratification to the max.