Yeah, and you've been barely improving in those areas. If you really want to get better with your shapes and line design, do some character design or environment design. Challenging yourself to apply the knowledge will teach you more than drawing the same face over and over again. If you wanna get better at forms, try rendering a sketch so you can understand how light wraps around it instead of drawing bald chicks over and over again. You're practicing a lot, but you're learning nothing from it. You need to change something about the art you make if you wanna do something about it.