Body type ( please help!)

Okay so I'm 16 and I weigh 260 and I'm 5'5 or 5'6 (haven't checked in awhile) My mom says that I look fine and it's because my family is tall so I'm tall. I don't think I look bad at all but I'm scared that the weight will catch up and go in the wrong places. Right now its all in my boobs,thighs,and butt. Please help! I need some safe weight loss advice!!!(That's me)