OLD TRICKS DO NOT PRODUCE NEW RESULTS: you need to figure out what you're doing wrong and fix it :
The myth of practicing for 10,000 hours to become a professional in a particular field has been spread for so many generations that it has become the focus of every amateur. Unfortunately, this is not completely true. If you repeat the wrong thing for 10,000 hours, you only get proficient at doing the wrong thing.
Hours of practice are necessary for a great performance but definitely not sufficient.
The difference between mediocre and great performances is the level of attention you pay while practicing.