Welcome to A2K. I hope you take the time to look around and understand the nature of a forum like this. As you can observe for yourself there are all kinds of serious and semi-serious discussions here on the forum and casual, silly discussions.
A2K is not like FB or Twitter. You need to understand this is pretty different and takes getting used to. There are a few hundred regulars and thousands of random people that log on daily. There are only a few teens here that participate. Generally, the people here range in age from 20s to 70s, with many exceptions.
As for me, I'm not quite 14; however, I'm sympathetic to people of all ages. You can check out people's profiles for info on who they are and what are their interests.
Good luck here on A2K. Try to react to people's teasing and joking a little less defensively and it'll be a lot more fun.