How To Prevent Sperm Leakage?

im suffering from 5 years of over flow of my sperm daily .due to this problem im not abble to get full toilet ,my legs and hands are also paining alot..and also im not getting proper sleep also.im 22 years old .but still im not able to increase my weight .i want to increase my weight and how can i stop this flowing of sperm.and also i need a complete sleep in the nights..please help me with this.