Loosing Weight

I'm 16 years old junior (17 April 8th) and weigh 248 pounds.😕 I don't like my body and have always wanted to be smaller. Everyone would pick on me and call me horrible names. I'm wanting to go on a diet but don't know where to start. Can anyone out there help me please? Any advice or weight loss stories? Love to know what helped u❤❤ P.S. Love u girls I have been really inspired on this app😘