How to quickly and affectively qet rid of my stretch marks ?

ive' had stretch marks for a while now.. and its now becoming a bigger problem then its ever been (now that i want to wear swim suits and shorts this summer) . im 13 and it sort of juss appeared when my start qettinq biqqer. im a sort of caramel color. and i have dark black swirly stretch marks all over my and hipps. .. i know, there really bad :( mann i really wanna qet rid of them so bad . any kind of help would be very appreciated.