The best way is to jump rope. You should try it. But if the effect is not great, it is a matter of quantity.
Wrap the parts you want to lose weight with plastic wrap, and skip rope every day (at least 1000 ~ every day)
This will be effective.
I used to jump rope wildly, 3000 a day. The effect is obvious ~
Come on! I wish you more and more PP^_^