Hobbies shouldn't feel obligatory, that's why they are hobbies, not jobbies. (thrown out of the building)

Just remember that cutting entire activities completely out of your life isn't always completely necessary.

By all means don't do things you don't enjoy, and definitely don't think there is ever an
outside pressure to make something creative when you aren't feeling it. Should you however feel like making something one day after a long break, don't feel like you should avoid it.
The best results come from when you are enjoying yourself/want to do it, that's why I know you'll be a good voice actor. :)

With that said, I hope you find your passion in something else and you can achieve happiness.
Voice acting can be a blast and I'm sure there are tons of other ways to entertain yourself.
Rock on my dude! :P