Definitely been in one because I simply don't have time with full time school and 2 jobs! The way I've been told and sometimes have tried is make a small routine for yourself. Dedicate time even when you're not feeling creative. You can use this time to practice techniques or attempt something out of the box until something sparks. You can also try spending more time in nature or visiting new places (a coffee shop or different city. Neither have to be far.) try to incorporate your experience and senses into your art. Also citrine is a good stone for inspiration and clear quartz is good for mental clarity.