Hi Dr, My Name Is Hend I Live In Cairo

hi dr, my name is hend i live in cairo egypt. i really want to loss 20 kg but iam on a course with diane 35. for 6 month, and it has been hardforme to loss weight what shall i do? should i give up diane or what can i do to loss weight since losing wieght will actualy help me in recovery please i need a doctor to answer......