Body positivity and a mini rant

So, I got a new swimsuit. It’s army green and I love the style, but I don’t feel confident in it. I have belly fat and my heights are chubby which is why I’m uncomfortable in the suit. I try really hard to be comfortable every time I am my mom calls me a fat ass and other names that me feel bad about myself and I then I won’t eat because I feel worthless.

How do y’all have body positivity, help a girl out.