When are good times to take a break?

I just finished MOI which took me a couple months, straight off the back of GOTM and DG which I read much quicker. I'm keen to get on with the series but feel like a need a bit of a break (I typically rotate several series at a time).

The only problem is I'm worried that I'll forget everything! So is this a good time to take a break, or are there other more appropriate times?