I just noticed 1 months ago that a lot appeared around my arm pots, shoulders and arm, and also noticed that my ass is basically a new type of zebra, it is covered entirely with stretch marks
Just lmk if anything can be done to avoid them to appear in a larger number. I can deal with the ones i have but i dont want more than that.

Hard truth, bulk more slowly.

If you are a teen getting stretch marks, nothing can be done.

They fade pretty well on there own.

You can use coco butter

don't get pregnant again

Bio oil is marketed as helping with stretch marks, although I used it for acne blemishes years ago

all common areas, they have all gone away except the armpit ones.

im 25 now

Once there they will never go away. You can try and cover them up and thats about it.

Stop gaining weight so fast..

Join the club. My back looks like it was whipped. My butt cheeks are so bumpy.

Thanks guys
As for bulking, I'm not even eating my macros and still getting bigger
I guess I have a slow metabolism

Like I said, Bio oil could help with the stretch marks.

Just know that fast/slow metabolism is not only an overused excuse, but it won't even have a major effect like what you described unless you have a thyroid or hormonal problem which I doubt. If you're bulking too much then cut down to a level your body is more comfortable with