obese?

I’m 5’2 & i weigh about 170, according to google (lol), I’m obese. I often feel very insecure about my body bc most of my friends are skinny & can wear anything. I’m on the cheer team at my school & I’m like one of the chubbiest girls on the team, which doesn’t make me feel any better :/ do you guys have any advice on losing weight or workouts?