Everyone's "manhood" is different. You really shouldn't worry yourself too much about the size. Just be happy with yourself and what god gave you:) Trust me you WILL find someone that loves you for you not what the size of your penis is....
You're only 14 and your body will be making changes these next few years. You haven't reached full growth yet and that even includes your height and shoe size.
don't worry about it. your still growing.
just putting it out there- if you find a girl that's worth keeping, she wont actually care