Happens to anyone or anyPony sometimes but at least it's abit of a good point.

If you want my opinion, you really should try branching out a bit more with your art. Draw some different things, try to dabble in something new. If you really have a passion for drawing then you should try to stretch it as far as you possibly can, not stay isolated to a single thing. Doing that really won't help you accomplish much in the long run, but if you were to expand your horizons you most certainly could accomplish something down the road.

But if you really feel like not drawing for a bit, that's fine too. No one can make you draw, and sometimes you just need a break.