What are some tips for me to lose weight?

i'm 14 years old and i'm a girl and i'm 5'6 and i weigh like about 160 pounds and i really need to lose weight and i sorta live in a small area so there is not much room i can exercise at and i can't go walk anywhere else because my parents won't let me.but we also have a trampoline in our yard.so is there any other way i can exercise and eat healthy for breakfast,lunch,and dinner?if so,please help i really do need help!