Answer:
It always good to warm up and cool down before and after you train. For serious or professional dancers or athletes, six days a week of stretching is good with one or two rest days per week. The body needs time to process, heal and repair. As far as daily training in your sport, it helps to cross-train and work different muscle groups so the other muscles can repair. This helps one progress. Make sure you are stretching correctly with good form. Never force or bounce.