PUBLISHING MY ARTICLE WHAT DO YOU THINK? im 15 thanks?

First you have to think of what kind of publication you will be writing for and research the types of articles they accept. Then you should write about something that you are very knowledgeable about or have experience with. You also need to understand that you will face a lot of rejection and even if your article is accepted will undergo revision. It is extremely rare for someone's work to be accepted as is.