My head is about to explode

I just got back home from class and though I am excited about finally learning something new, wow is it ever challenging my brain-power. For the past month or so my class has felt quite redundant; not learning anything new only reviewing. And though that can be helpful it can also be quite boring. Well now that we have started something entirely new I have no worries about being bored. My only concern is how much will I retain after my one month break from school?!? But I guess I can worry about that in September when my class resumes :)