Hi my height is 5'3 n i weigh 68kgs suggest me how can i reduce my weight in shrt period of tym?

i'm 18 old gal n der's my bro marrige is in september so i have to loook good and i do 1000 skips per day that's lyk for 20 mins is dis good???????????????????? i hope u ppl wil understsnd d importance..............................… awaitin ur answers.................................…