Please advise if it's ok for a 16 year old girl to masturbate about 3-4 days in a week?

Ok, but it seems...: Sex overindulgence is a common personal issue to affect or mess up personal life. Physically, it is okay, but 3-4 times will definitely affect personal learning and maturity for a successful living with more energy, ability, productivity, and independence in the future. So, guide her to live a balance life, and the best mentor for this is her parents.