hiii dear be relax i admire you for positive outlook 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 it require calories like physical exercise and after that much calories burn and there is pleasur in orgasm which is followed by relaxation all of this natural process but constant thinking and feeling of guilt of masturbation will effect so dont think much it is normal enjoy thank you