How to get rid of stretch marks?

So a year or two ago, I was seriously overweight - I'm a 14 year old girl, and because of being overweight, I got stretch marks on my stomach all around my bellybouton area. The marks have faded now, to a whitey silver. I was wondering is there any way I can get rid of these? I'm open to laser surgery, but I don't know if it works? Any creams that have helped you? I'm open to anything that doesn't involve an operation.. Is there any way these marks will be gone by the time I'm 16 or 17? Thanks <3