hi little, no it's certainly not you. perhaps you're mature for your age and need to find ppl with similar interests as you. a lot of ppl just don't have much depth. one thing you can try is ask them questions about themselves. you may find a common interest that way.
i read your profile-social phobia. this could cause you to not feel totally comfortable meeting ppl to cultivate into friends. takes practice. i like to go to barnes and noble and sit in a comfy chair around a coffee table. usually there are at least 4 comfy chairs. i've made friends there. since they like to read or explore a topic it can be a stimulating conversation. especially cause we don't have to quiet unlike the library.
you have a lot of interests. why not join a social group in your community that has one of those interests? the newspaper usually lists them and the next time they meet.
if you meet someone you enjoy chatting with invite them to do something with you. that's a good start.
happy conversing!!!