Stretch Marks.

I'm young and I'm growing. That happens when you're a teen girl. Of course, I got a ton of stretch marks after my growth spurts and those never really bugged me, but, all of a sudden, more started popping up in different areas. They're now across my stomach, arms, calves (like how and why omg) and I have no clue what to do. I'm not gaining weight nor growing. Has anyone else had this problem? How did you take care of it or get over it?