My penis is small like baby size small when not erect but erect it gets bigger. i'm ashamed of this and want it to look bigger i need help. ?

This...: Is always difficult. There is no "magic bullet" for penile enlargement. Remember to be confident in who you are as a person. The penis has limited overall functions and as long as it can do those, then try not to focus on the size. Most partners ultimately won't hold this against you. If you are overweight, then weight loss can help tremendously and be healthy for your heart.