the illustrator style has nothing to do with getting good
when studying you need to think what you are doing.
you can buy books, but you can find everything on the web. there should be moments where you think "today i'll try learn x" and then you take time to do research and practice. while other days you fuck around and brain fart. but the next time you brain fart after a study you will incorporate your studies without realising it. that's how you make progress
drawing from real life is the best practice you can do.>also moebius is the bom.