Iam 22 year old man, my pennis as so small, its 3" when its tired, how to make it big atleast 6 or 7"? please help me...

Satisfaction : A woman needs attention, stimulation and tenderness, not brute size. Width is more important than length. Technique is more important than length. Caring and authenticity is more important than length. Foreplay and attention to her needs are more important than length. Servicing her pleasure is more important than length. See the pattern that's forming? Length is mostly a guy's preoccupation.