I am too fat. please send me some tips to become slim and fit like others.let the tips be within home remedies

(please keep it secret)I am still 13 years old and i am about 55 to 60 kgs .i am very irritated by my fatness.I am one of the rank holders in my cl.this time i had took fourth rank.i feel shy because all the other rank holders are very slim except me.I WANT TO BECOME SLIM FASTER