How to practice the ability to fight? Practice alone.

A person will beat his body with a hammer made of rubber sticks or sandbags, mainly his abdomen, thighs, back, chest and ribs, but not too hard. As for the head and neck, it is not by hitting but by dodging. You can use a stick when you get used to it. It's bound to hurt at first, but you'll get used to it.

It's better to find someone to practice together. Two people wear gloves to beat the rhythm, and one person dodges or fights.