Hey, @alyssus! I’m arriving a little late here, but I’m glad to see that @Dwight has already given you helpful replies. I’ll hop on your request as well, but, instead an re-answering the questions, I’d like to share more of an overall feedback, hoping it can be a complement for the guidance you’re looking for. Since you’re a complete beginner, my main advice would be for you to stick with course lessons and assignments first and primarily, before attempting to develop your own free exercise routines. Sure practicing on your own should be helpful too, but structured courses already provide you a system which to follow and instructions on how you should practice to achieve the skills they’re aimed at. An art course is often designed with the objective of developing specific skills, so focusing on foundation courses should help you develop foundational skills through your early steps with relatively more ease and comfort… at least more so than by practicing solely on your own. I see in your profile you’re already enrolled in Figure Drawing Fundamentals - that’s great! This can be a good place to start. Simply work through the course by watching the lessons, taking notes, reviewing as much as needed, doing the assignments as suggested and posting your work here in this community to get feedback. Gradually, the critiques you receive plus your own self-assessments should give you clues on what to adjust in your practice, what to focus on more intensely, where to go next… Later down the road, once you start to feel grounded enough and notice the need to take your art in directions which the courses you find won’t fulfill, then you can start to consider how to design your own customized practice routines in order to meet your more advanced needs and goals. That’s my take anyway! Hope it helps somehow. Please feel free to let me know if you have any other questions. And count on this community for help whenever you feel stuck in your art studies. Best regards!

Honestly, this might not be the advice you want, but I'd do what you feel best. I say this because you don't want to make drawing into something you dread and end up quitting early. As to your questions: 1. You're really asking two here. Imposing time limits will force you to simplify, so it's useful for complex subjects. On the other hand, understanding and correctly aligning shapes should be precise, and so I wouldn't shorten your time for such a focus. Think of it as, the shorter the time, the bigger the picture. 2. Similar to your time question, this can be done as an exercise. It is fun to do gesture with pen and not stress whether it's right or wrong. But for the most part, pushing through the sunken cost fallacy is hard enough. Peter Han and such can work with mistakes because either they're not critical to the drawing, or are so knowledgeable that they can work with it. 3. Once again, it depends on the person. You probably don't want to hear it, but training you eye will be the easiest way. Sure, head measurements and shape design examples might help get you started, but there's so much variety in people and objects that you have to be able adapt to what you're seeing/imagining. I'd just like to add, the fastest way to improve is getting feedback. I understand if you may be like me and are hesitant to show your work, but even self-criticism is useful (they say your harshest critic is your self). - Dwight