Does It Make Sense To Keep Trying?

My story is pretty idiotic mainly because I'm afraid to talk to people I don't know well and I'm quite embarrassed at first. I'm a girl of 16 and I liked a boy from the upper class. It's not a family, it even looks a little closed. Besides being in the same school, we both travel by subway in the same direction. So after a while I sent him an invitation on Facebook. He accepted her four days later. He doesn't come in every day, but I don't know if that's the only reason he lingers so long. I wrote him to ask him something about school and he answered quickly and not in one word (this happened around Christmas). I had decided to talk to him after the holidays when I saw him, but I couldn't - every time I had the opportunity, I froze in fear. This despaired me and I began to seek help from various other people. I wrote to him again, he answered decently again, but he did not ask any questions, and the conversation died. It turned out that a friend of mine knew a girl from his class, we met her and she tried to make me go to their room to meet him, but again I was very scared and it didn't happen. Then she called him outside and we met, there was a group of several people and we talked for a while. It was very awkward, we both seemed to be talking the least. I didn't look him in the eye all the time. I was later told that he, too, had looked at the ground. Then I was determined to talk to him again when I saw him, but 2-3 weeks passed and I still haven't done it. I can't tell if he's avoiding me, but he's definitely not trying to be around me. I know it's getting more awkward every day, and I know that if I want something to happen, I have to act. My question is: don't you think that if he showed the slightest interest he would do something, write to me, say a "hello"? I know my story sounds funny and probably slimy, but I really like it a lot and the problem may be that I believe that something can happen, but every day I say "I'll do it today" and I don't like it. gives an opportunity, or I miss it and it eats at me from within.