For you, besides fat, there is a large proportion of water in your weight. Therefore, it is entirely possible for you to lose ten pounds a month. But you must work hard. The easiest way to operate is running. This is not technically difficult. You can walk slowly for fifteen minutes first, and then start jogging. The longer you run, the better. If you exercise for an hour every day, you will succeed. If you feel that the venue is limited or the time is not good, you can run in the same place and do it at home instead. There was once a boy who was as thin as 140 kg from 260 kg. He kept running for eight months. His name is Zhao Yiran. If you are interested in his method, you can find it online.
Well, you are tall. If you can lose 120 kg, you must be a beauty. As long as you make up your mind to be a beauty, you will succeed.