Half a week ago, I started doing stretches before going to bed, and when waking up the next day. I hold each stretch for a minute. I'm doing this so that I can gain more leg flexability, and begin practicing high kicks ( because flexiblity is obviously important for that ). I'm currently doing toe touches, splits ( as far as I can which isn't that far ), and a few more stretches that focus on stretching my groin muscles. Will holding these stretches for a minute be enough to dramatically increase flexibility? Do I need more stretches in order to increase flexibility? Finally, do I need to stretch more times per day, or am I overdoing it? Any input will be appreciated. Thank you.