This reminds me of what I felt by the time I graduated from college. I'd absolutely LOOOOOOOVED art and crafts and creative stuff, but felt like school completely made it into a chore. I've still never bounced back 100% from that, but at least I love it again!

Try doing something without the store in mind. Maybe not even mask-related. Try something else. Or go biking. Or whatever you want that lifts your spirits and reminds you why you love what you do.

Beyond that, just give it some time. :)