While getting advice from teacher and professors during class time is an incredibly helpful thing. Some of the best work advice I’ve gotten is from friends my own age, when I’m just drawing and messing around at their house. If you have artistic friends, I really encourage you to do artwork with each other. Maybe not your most important projects, since that can be rather distracting, but your own fun projects. It’s always good to have another set of eyes around when you’re sketching something, and it makes drawing or whatever else you’re doing a lot more fun.
For me, I work best alone in a classroom setting, but in the end it’s super important to have people help you along the way when you’re practicing on your own.