Having a long penis isn't going to do anything but bump your partner's cervix, which is NOT a pleasant sensation, to say the least. Girth can make a difference, but length doesn't matter, honestly. It can even be too long if it's bumping the cervix with every thrust. My ex is average-sized and he still hit it sometimes.
Sorry man, I don't think there's any real tried-and-tested way of increasing your size. Why don't you just practice being a great lover with a small dick instead of wasting your time wishing you had a bigger one and thus preventing yourself from really enjoying sex?
WTF? Most girls don't care, and if they do, maybe u dont wanna be with them. Size DOESN'T matter and I dunno what else to tell you, hear it from a lady, it doesnt matter but I think u might be able to get surgery, do that and become shallow, loose the title of my brother.