Ayyy girl, you're not alone! A few of us moms have complained about this din, it's that stubborn armpit fat na parang hindi gumagalaw no matter what haha. Honest lang, it's usually a combo of genetics and weight distribution, so targeted exercises like push-ups, tricep dips, and lateral raises might help tone the area, pero sometimes you just gotta accept na yun ang body mo and rock the sleeveless anyway! One of my friends swears by wearing the right bra fit (makes a HUGE difference dun) and she's more confident na, so maybe try that muna before stressing yourself out. Remember you look beautiful either way, but I get it, sometimes we just wanna feel good in what we're wearing!