I've been drawing as long as I can remember but I started taking it seriously when I entered middle school. It's all just about exercising the muscle so my regimine was one hour of drawing a day at least every day until today. Just simply repeatedly drawing whatever came to mind and honing that skill basically made me able to draw whatever I could imagine after a few years with relative satisfaction. My mom would give me a bunch of drawing reference books and stuff that I would also practice with and it gave me better eyes for forms and shadow. I also took some sketch classes in my later years of highschool and in a more competitive environment I was pushed to excel and stand out.
Add a couple shitty years of art classes in college and here I am drawing boobs for strangers on the internet.