Consistency is key to improvement. If you practice a lot and then quit for a month, you'll have a setback in skill. Crash & Burn. Drawing every day will help you become a great artist.
Fantastic Creatures is a how-to art book and a sketchbook in one. Is this new form better? Is it fun? Do you learn to draw fantastic creatures? I tried it cover to cover & here's the in-depth result.
How do I learn to draw? What is symbol drawing? Where can I get commissions? If you are new to art, you can find answers to your questions here.
What you can read and do to teach yourself how to draw and paint.