How many days per week should I workout?

This question depends on the individual; however, generally, you should rest 1-2 days per week. Working out everyday won't do any damage but it won't give your muscles the maximum time to fully recover from the previous workout. I usually like to leave one day out of the week to rest which is wednesday or thursday, but it all depends on how I feel that week; If i feel really good I'll workout 7 days and if I feel weak or unfocused I'll reduce it to 5-6 days. But always take a break at someone point because the days you rest are the days your muscle actually grows.