Undecided Question

How can I get rid of my bad stretch marks?

I lost weight, then gained it back and it caused my skin to stretch so now I have really bad red stretch marks on my stomach on both sides, and on both sides, and on my back on the right and left side.

I've tried Bio Oil, and Palmers Coco butter formula and they did not work at all. I can't afford those really expensive coco butters or other things.

What can I use to get rid of them? I don't care if they scar and turn white, I would rather them be white then be red.