I just did a google search and found this site that I thought would be helpful. I just recently tried drawing and found out that I can actually draw very well. When I started looking at this sight, I found out why. So, hopefully this will at least get you started in the right direction anyway.
https://www.learn-to-draw.com/
Don't be satisfied with what you can do but rather strive to do the things you can't do!
Exceed Expectations!