Say you hit a dry spell or you're not enjoying writing a particular piece as much as you used to, how do you move in from it and continue your fanfiction?

Everyone deals with this stuff differently I guess but maybe using different methods might help in the long run. For me, nowadays, whenever I get ready to type up the next chapter of one of my fics I just freeze up and find ways to avoid it by writing a new series or watching a drama. It's not that I don't like my fics because I too want to find out what happens next and for the story to progress and I feel bad for my readers because I haven't updated in a while.

So how do you guys move forward, and what motivates you to continue writing when it's difficult?