I am too young to be this fat

I have been trying to lose weight for ages but I just don't have the will power. I’m 15, 5 ft 3, 14 and a half stone, female. I want to lose as much weight as possible because when you are my age, you get made fun of all the time which just sends me into a spiral or depression.

To lose weight I have tried diet plans on the internet, none of which I could do because I don't eat red meat or fish or pork, just white meat. And every diet I have tried always has something in it which I can’t eat.

I have tried slim fast but that didn’t work at all. I started the gym but I felt all self conscious because other people there watching me.

I have tried exercises before like crunches, push ups, sit ups. I also went to this thing that was like a mixture or judo and exercise and it just made me angry because it was completely useless because it was on once a week which was completely useless and it was £4.00 for 1 session and I’m only 15, I don't have a job and I can't afford things like that.

Thanks for your time!!!

Workout routines