The basic premise:
1. Move slowly, often - this means walking, moving around throughout the day. Low intensity stuff that keeps you moving.
2. Train for strength occasionally(a couple times a week.). Should be focused on compound movements and done at a fairly high intensity, if possible.
3. "Sprint" - that is to say, short bouts of all-out running/biking/etc. once per week.
The basic idea is lots of slow movement(#1), and then occasional high-intensity exercise(#2,#3).
For other activities, you should do what you enjoy, and listen to your body - if you're feeling worn down, you may be over-exercising, under-eating, or under-sleeping.