You just conquered your fear, brother, see? look how many girls answered your question. Start off small. Maybe find a girl online, be yourself and get to know her, then meet up with her. It's a rare breed of guy that has the confidence to approach a group of girls, but if you approach a girl that interests you, say, in a cafe, and you don't come across as a player with a retarded pick-up line, or a complete wierdo, then she'll either respectfully decline your advances or genuinely be interested in your company. Be mature, confident, and Be respectful. And be you.
There are millions of girls out there. And they all have different tastes in men. You're young, so take your time, stay confident, and don't let any setbacks discourage you.