I take really good pictures, i just don't know anything about cameras.
I just need a new one, and if its possible to optimize my pictures.
I've been using the same camera for the last year.
You don't need a new camera; you need to learn how to use your current camera. I'm guessing you are using it on only the Auto modes. You need to learn about the basics of photography and how to use the "real" modes (P, S, A, and M) of a DSLR. Your current camera is just fine for learning those things. Once you know about cameras and are shooting good photos, then you can think about investing in a better camera.
I'm not sure what you mean by optimizing your pictures?
If you want to photograph your friends' weddings as a guest, go ahead (but remember not to get in the way of the professional photographer, including not shooting over his shoulder). If you want to shoot weddings as a part- or full-time career, you have a whole lot of learning ahead of you before you can be a second shooter. Then, eventually, you might be able to be a wedding photographer (depending on your skills, knowledge, ability to work under pressure, etc.). Remember that wedding photographers aren't allowed to have bad days/shoots that don't go well; you can't recreate the first big day in a couple's life like you can a portrait session.
You might already take some decent photos, but we don't know 'cause we haven't seen them. But lots of ppl think they take great photos until they learn better the more education about cameras and photography they get. So, humble yourself, take the time to learn, and then re-evaluate your photos as you gain skill and knowledge.