I stop drawing a long time ago,I really hope one day I can get myself back to it again.
I remember the last year of highschool was so busy, it killed my creative spirit, and for a couple years aftwerwards, I was barely able to draw anything.
What really scared me was when I noticed my art skills were deteriorating because I was drawing so infrequently.
Eventually, my family moved, and we were without Internet for a couple of weeks. During that time, I had my cds playing near constantly, and I just started drawing again. And what's more, I really enjoyed it, and couldn't stop. My art production isn't as on fire as it was that month, but it's back to what it normally was, and I'm producing art semi-regularly.
So if you need to rekindle your artistic spirit, try unplugging for a week or so, and listen to a lotta music. I find music energizes me, and gives me creative energy.
Another thing you could try doing, is reading a book for a few minutes before you start drawing. I found that also gave me a boost when it came to creative energy.