I took about a month and a half long break earlier this summer, for mutiple reasons. When I came back to it, my tolerance was like I was 12 again. It was great... You don't have to stop a month but even like a week will help. It's nice to take a break every so often.. clear the head, clear the system, drop the tolerance, and get a whole new appreciation when you start back up. If you feel your tolerance is too high and you're burning more weed then you get out of it. Take a break.