what is good in preventing stretch marks? I bought some kind of body Butter that works with baby #1…

what is good in preventing stretch marks? I bought some kind of body Butter that works with baby #1 but I didn't think as far to apply it every where generously and got them super bad on my thighs, and real bad on my breasts. I don't want them to darken, yes I am serious, no I'm not ashamed just have crazy anxiety over things lol