It's impossible to tell a joke that falls when the wind blows. Of course, it's just an analogy, but this weight is really too light and thin, and I don't think the resistance will be too good, let alone physical fitness. The best way is to gain weight, exercise hard and gain more weight. You are 170. You are tall and thin.
This is equivalent to a top-heavy feeling. If the center of gravity is unstable, you should eat more to make your body fatter, so that your body will look more symmetrical, your body will be more beautiful, and you will please boys. Qualified to be a beauty.
Everyone loves beauty, but we should also pay attention to methods. You can't care about your body for beauty. I suggest you increase your weight to about 60 kilograms.