Recovery potential from stabilized high myopia is unpredictable without some exploratory work. All depends whether you have a strong desire to reduce prescription and put in the time for it (significant effort, and 20/20 is a very long shot). At 36 there is still a lot of plasticity, if you were to try, sooner is better. In any case, you do want to keep up with eye exams to catch further degradation (in which case at least some work to keep your prescription stabilized would be wise).
If any graphic designers or illustrators follow this discussion, I could much use help in trying to put some helpful guides online.