I guess i could give you some help im about 1m 74 cm tall i use to weigh 145 kg and i where 19 years old.
Right now 20 years old i weigh 95 kg not the " normal weight " it should be around 80 i believe sense im a guy.
I lost the weight by eating like some one who have done a gastric bypass surgery 5-6 small meals per day.
About the size of a can of baby food (8 months) and skip stuff like soda fries and focus mainly on the meat.
And only eat junk food MAX once a month lesser is better and chew the food its really important that you do.
Each one of those meals should take around 20-30 mins to eat and then im playing badminton for 1 hr 1-2 times a week.
And a 20-30 min walk at least once a day but remember the food change where a royal pain in the ass.
I where hungry like all the time the first week but i got over it after that and i still eat that way.
Its like burnt in to the back of my head.