/ic/ - Artwork/Critique

How do I git gud at drawing heads? Right now, I can't even get the foundation right similar to pic related, give or take some detail.

I really want some exercises to grind out, so I can organize my efforts and analyze my progress. I see a lot of resources like Loomis are very good at giving you all the measurements and proportions of a realistic head, but don't really give you any exercises to practice. They just give you information and let you do what you will with it. (or maybe im retarded and not realizing what to do)

I always learn best when I can have "drills", but I don't know if that applies to art. Like for example, when I learned to swim as a kid, they'd give me drills to do X amount of laps with a certain stroke and so on.

I usually find myself wondering what to try and do and what will be effective? I'm not great at learning without a teacher.

I've been drawing what I see without construction for a while when copying things, and I'm struggling really hard when I try to make basic shapes first. The shapes end up being the wrong size or in the wrong place and so on. I want to draw from imagination as well but I don't know what steps to take. My ultimate goal is drawing comics.