well im almost 21 . and recently in the past few months i have noticed that my erections arent hard any more . i dont have any problems whatsoever, im go to the gym daily . i also use to masturbate daily , but now i have reduced it to 2 times a week . when im masturbating and if i do not masturbate for a minute the erections just softens more . i do not some from stress or depressions. i use to get really good erections till 19 but i guess from 19 and 20 onwards its becomming more and more softer.what do i do ?