When I was in college for engineering I experienced something similar for a little while. In my case, I explored a few different hobbies while in college (writing, robotics teams and research work) but eventually found my way back to creating comics near the end of my degree.
I think my advice for you is to evaluate why you want to work on your art and writing, what your goals for it are, and what's most important for your life, your self actualization, and your career at the moment.
Writing and artwork will always be there for you, but some of these other opportunities might not be. Are you working creatively for money or for fun? If it's for fun it might not hurt to take a step back and view your other experiences as fuel for later creative work. Give your mind a bit of a rest and instead focus on what's most pressing. I know I'm doing a lot more creative work now that I'm on a 9-5 and have time to work on weekends and evenings. In college the responsibilities tend to leak out of the "designated" time allotted for classes and take up most of your energy. That's okay! The ideas, inspiration, and motivation will come back when the time is right. These hobbies have no expiration date, and tend to improve with time. (My work now is better than when I first started it, and leagues better than when I was in high school.)
So in short, it's going to be okay. Just listen to what your mind and body need and are interested in. The creative work isn't going anywhere even if you pick up another hobby for a while.
