Hi I understand your concern. Masturbation does not cause weakness. It is kind of physical activities like running and walking that consumes calories. But constant thinking can lead to psychological weakness and excessive stress may affect your orgasm/climax. Proper psychological soundness require to do sex and reach to climax. So relax and throw all material from your mind Masturbation is normal physiological function of our body it is one the method to satisfy sexual pleasure in absent of partner both sex and masturbation has same and has same end result to get satisfaction So no need to worry but constant thinking and feeling of guilt of masturbation will effect your sexual function. Take proper diet and nutrition to fulfill daily requirement. Avoid junk food/smoking/alcohol/any other substance or medicines that affect sexual function and brain. Consult psychiatrist for further assistance. Still have query then feel free to ask. Thank you.