lately ive been feeling like a sloth. i used to workout heaps with weights, go to a lot of kung fu, and even go running (thats a lot for me).

lately, i havent been able to motivate myself nearly so much.

either ive lost my willpower and turned into a lazy sloth (ive just started first year uni, so thats a major possibility) or something else is wrong. so what id like to know is, what can i do to increase my energy?

diet, sleep, activities, any suggestions at all would be great.