You might want to start using form more than just 'copying' off art in general. It helps you understand the formality of how the character is shape in contrast. This also goes for how coloring tends to go with the shape, and contour of the object, as well.
I am not totally disregarding you should copy off other art in general to learn, but copying without understanding the structure renders it useless. I took many art classes, and some just teach more like one of those artbooks that have a generic title: How to draw animals, how to draw people, etc. It is just purely step by step gunk that makes you even more frustrated.
I give this link to everyone, but it lays the most important basics for any beginner out there, and I use it to even if I am clearly above that level:
http://www.thedrawingwebsite.com/
It also helps to have several favorite artist under your belt, especially if you are considering what type of 'art' you do. For me, it is comics and animation. My work tends to spread from 80s, to 90s, and Japanese background.
You may also want to see an artist draw. Live streaming from their perspective, especially when using a PENCIL gives you an idea how they do their forms. Hand movement is extremely important as a stiff, rough, or poor holding of the pencil itself can really cause frustration in your work, also cramp your hand in the process.
The best too, however. Be LOOSE as possible. Don't rely too much on the eraser, it takes several tries and attempts to make the overall finish production perfect. You can start drawings with just a light blue pencil, and keep drawing with it till it looks correct, then use your darker pencil. Can be a regular lead, or a darker blue, whichever. You can then outline the finish product.
Sorry for my lengthy tip, I hope this helps if you do decide to strive for a much more harder road.