Suggestion: insist on getting up and drinking a cup of boiled water every day, and you can eat breakfast casually without accumulating fat.
No carbonated drinks, no junk food.
If you are tired from running, swim more. . Not only lose weight, but also keep fit.
The most important thing is eating. . Eat when you are full, and you will be OK if you are not hungry. Eat as little staple food as possible (that is, eat less) and fill your stomach with vegetables. .
Try to go to bed early at night, don't stay up late. .
Three months' time will surely make you see satisfactory results. .
I used to be fat and thin. So it is not difficult to lose weight, mainly because of perseverance. Come on!
As for clothes and hairstyles. . No suggestions. . When you lose weight. . You will know what is suitable for you to lose weight.