I hope you get cooler weather soon. I like to take short breaks from quilting. Crochet a little, read a few books, just find something else to do.
The reason: It keeps me feeling fresh. I always come back with a vengence with new ideas and creativity. When I start to feel stale or "gee, really I have to do that again", I take a break.
Just let your mind go and see what happens when you get back. :)