I need u to help me

I'm a girl, and everyone agrees that my facial features are beautiful, but I'm overweight. I'm tired of my family and relatives commenting on me and comparing me to bears and cows. I weigh 68 kg and am 152 cm tall. I need advice on how to lose weight quickly because my sister's wedding is in about two or three months, and it's essential that I look beautiful. I also need beauty tips—things to improve my complexion or make my face more attractive. You might think my situation is normal, but I've stopped even sitting with my mom because of her bullying me. That's why I want to change my appearance, not just my weight, so that I have more self-confidence.