Im trying to lose 5lbs per month for the next 4 mohts so a nother wors 20 lbs... any workout routines that i c?

im 14 5'8 168 im trying to lose 5lbs a month for 4 months.. so 20lbs// is this even possible???? any tips workout routines i can do at home without equipment, foods anything that you know that will help me