@beauvice,
Only heavy exercise , in particular leg/upper thigh work and cardio is what you seek.
Harder shlongs and penis capabilities which span more decades are achieved this way.
The growth in general of your hoochy coochy rod is not as required as you think, nor is it as probable to succeed via supplements or devices as you are led to believe.
What you really need is a cuddle and some tenderness from a good women who gently caresses you back, not an empty wallet and no explainable results.
Though certain amounts of standing around with weights on your pecker are reported to achieve something if you have the patience of a monk, which usually only monks do.. and they augment more important things with their free time.