This f#cking thing just doesnt make sense

I just dont get it, when i do a deep belly breathing for some time my flaccid gets bigger and more loose as soon as i stand up again or stop doing that its turtles again. Im just confused and out of options lol, kegels doesnt work, reverse kegels, nothing works, it helpe for a bit and then im back at square one again, especially before taking a shit then it just retracts all the way in