How often should I train? How often should I rest?
Your body will tell you. However, your mind might try to convince you to stay on the couch. Listen to your body.
12-9-6
Overhead squats, PVC or dowel
Leg lifts on floor
Translated this means three rounds of descending repetitions. Set the timer. Work as quickly as you can (safely): 12 overhead squats with a PVC dowel (or broom stick),12 leg lifts, then 9 overhead squats, 9 leg lifts, then 6 squats, 6 leg lifts. Stop the timer. Write down your time.