Hey! I'd say it really depends on what your goals are. An illustrator might want to spend a ton of time learning figure, where as a concept artist would likely spend way less time. @Jeffrey Watts has a video on his Youtube channel called "How to Train to be a Professional Artist" that I really liked when I was in school. What I'd say is identify your goals, and then go from there.

Work on line quality, constructing things from basic forms, perspective.

I'm still a begginer, but what i do is: 1- [20] Minutes of gesture drawing [5 - 1 minute poses, 5 - 2 minute poses - 1 - 5 minute poses] 2- [5-10] Minutes (i analized my gesture drawings and see what i have to practice 3- [30] Minutes studying the thing that i need to practice 4- The remaining time i usually continue a course or practice what i fell like.