It is your life and whatever you do is your path. The support and opinions of others can be important and guide you, but in the end you make the decisions.  If you are bored with this hobby, take a break or quit. It is OK. Go back to your other hobby. You can always return to drawing, like me after 25+ years of not drawing at all and after a few years of slowly returning to drawing I still enjoy it, as a hobby. I do not complain or wonder where I would be if I had not stopped earlier. It makes no sense and would be a waste of time. Also it is perfectly OK to have different interests. Its broadening your perspective and experience. However if your goal is to make a lot of money from your hobby, whatever it is, stick with it, even if you get bored.

I noticed there are two types of people in the world: people with hobbIES, LOTS of hobbies, and people with no hobbies. I don't know anyone personally that only has one hobby. It's supposed to be fun! I drift around among different hobbies. Art has been my longest running hobby in my life, but I still do music whenever I can. Not as much as I'm "supposed to", but I'm not a professional musician so who cares. Sometimes I drift away to do something else for a few weeks or months and I don't do art much. Just follow what your heart desires. But it also sounds like the problem of making art too stressful for you, not so much that you're not interested in art anymore. Make sure you remember why you wanted to do art to begin with, and do some fun, personal projects in between assignments. Doing nothing but following courses can easily burn you out.

Hey Robert,  You’re not alone! One of the hardest things about having multiple passions is it can feel almost impossible deciding where to spend your time. Devoting time to one effort comes at the direct sacrifice of the other, and wavering between them can feel like you’re not making any progress with either! Siv gave some really good advice “the only way forward is to regularly reassess which topic is most important to you, and then prioritize that activity.” The best thing about having multiple hobbies is you can choose where you spend your time, and the stakes are low. Hobbies should be fun. If you don't like it anymore, or you don't really feel compelled to do art, that doesn’t reflect poorly on you. You put in a lot of work on this course! Your album is packed, and shows tremendous improvement along the way! Don’t forget to go back and take stock of what you have achieved so far! But if you feel like you need a break from it, take it! Breaks are good! Play drums, drums are fun! We’ll be here when you’re ready to return!  I also juggle learning art and music, and struggle balancing my time with each! Philosophically, I don’t think it’s possible to waste time practicing art or music. Any amount of time spent with either is time well spent. They’re both worthy life-long pursuits. If you’re being called back to music, spend some time there to decompress and reflect on the art you’ve made. Personally, learning art fundamentals taught me a lot about my music. I think the two go hand in hand. So follow your creative instincts, and if you’re called back to art, you’ll be able to approach it again with more knowledge of the process.  That said, you can’t always have a drum kit with you, so always bring a sketch book :) 

I can relate to this as I always switch between different interests and 'obsessions' and struggle with this as there is only so many hours in a day... Not sure I have any advice but maybe it helps you to hear that I have similar struggles. For me, I got really into coding and web development a couple of months ago and can totally immerse myself in that and feel a drive to become really good at it. I noticed that it took away the energy I need to maintain momentum with my drawing practice and it feels like I need to choose one or the other. For now I decided to stick with drawing and put coding aside but then I also struggle justifying this. Coding might be more useful for me career-wise. Although I would love to make a living or at least some income doing art, is it even realistic at all? And although on paper I can probably find time for both it is something about directing the brain around a topic to direct interest where it can work in the background when not actively doing it... I feel like the only way forward is to regularly re-asess which topic is most important to you, and then prioritise that activity. Not stopping the other completely but choose which one takes priority in terms of time and attention.