A couple art tips I wish someone had told me when I was starting out:
FOR ALL AGES BECAUSE YOU CAN START ART WHENEVER YOU WANT AND YOU DON'T HAVE TO BE YOUNG
If you want to draw people then one of the best ways to improve is to become a little narcissistic and repeatedly draw yourself. You are someone that you'll always have reference to and don't need to feel bad about lacking skill when drawing.
If you want to draw in a cartoon or anime style then first draw realistically so you can form a better understanding of proportions, movement, and perspective. This may not be true for or helpful to everyone but I know many that it has been helpful for.
Quit looking up poses on the internet and model your own poses, you coward! You can choose the angle of the camera and the exact position you want each piece of your body in!
Don't fully render an image in your mind. Think of one or two elements of the piece and let the rest flow for best results. Not many people can replicate what was in their head, you'll be less upset if you keep your ideas and inspiration vague.
