Will God kill her for this?

If you masturbate every day, many times a day is a physical sickness. Don't get me wrong, masturbation is normal, it's the excess that may cause problems. God would not punish you over a mental/physical sickness that is out of your control or if it's a hormonal phase of your life, which is quite normal too. You should seek help if it is out of control, because the excess of sensuality is a vice and must be corrected for your body and soul's sake.