Working religiously hard is not a bad idea. A profession or a career takes a high degree of knowledge and skill, and also patience and time to invest in it.
Taking time and patience, you become more accurate. Then, when more accuracy go by, you do it without a second’s thought. Like to eat and breathe.
Don’t get afraid of critique and don’t forget that many things, goals, don’t have a clean path.
For artists, 10,000 hours is a long way; for a novelist, you may never publish anything for several years.