Hello, While it once was regarded as a perversion and a sign of a mental problem, masturbation now is regarded as a normal, healthy sexual activity that is pleasant, fulfilling, acceptable, and safe. It is a good way to experience sexual pleasure and can be done throughout life.Masturbation is only considered a problem when it inhibits sexual activity with a partner, is done in public, or causes significant distress to the person. It may cause distress if it is done compulsively or interferes with daily life and activities. Your weakness may be simply because anemia or calcium deficiency or vitamin deficiency, Eat more fresh fruits and vegetables,, drink milk daily with some protein supplementation. Exercise daily or jog these will help.