Need advice to get closer to a girl!

Hello I am Jet! I am here for advices to heard your experiences and go for the best advice Ok Since I came back from Colombia I got into a catholic community call Neocatecumenal which I got to know in Colombia anyway So I got into one in Dallas. In that one there is bunch of younger people we are talking about 14-19 and then 4 people about my age after that everyone else are marriage couples we are about 45 and I sing in there So my situation is that I dont know how to approch to one she is 15 years and you know I am 26 now but I dont know what is it about her that I really want to get to know her, because I like a lot of girls, but there is something different about her I dont know what is it? but anyway I confronted my shyness and thanks to somepeople and God I got to speak a little more to people and specially girls before I was to scare now I am normal; however, there is a internal block in me when ever I try to say anything to this I feel like a child and my brain goes off, and I shake and trust me I talk to hot girls I even had good looking friends but I know what is it about her? I dont know if to go and say to her"Look...name of the girl... you know I dont what is this kind of feeling you know and I would like to know if this feeeling comes from the bottom of my heart and this is something God has put in me so I want to find out"" I dont know if I would be able to say that and ask for a date or just ask for a couple minutes everytime I get to see her! I dont know what to do plus she is 15 even I dont have any bad intentions on her for sure, but I know there will be to much struggle So what should I do?

What would you as a grown man have in common with a teen age girl? I'd just let this one go. Sure, I understand attraction, but it's always best to stay at least a few years either way around your age. Trust me, she has a totally different mind set than you and besides, you're almost twice her age.

However, I will try to do that, but itll be pretty hard because I have to spend a lot of years with them, it is hard to explain but that community will stay until they leave or move! at least 15 to 25 years for sure! but I try to wait for someone! and I really apreciated ya'll took the time to read it thanks again!