I have many suggestions in order of priority.

Attempt to use hemomancy to perform healing on arm. Is that a thing? We should check.

Acquire leather armor.

Attempt to befriend small green creature on screw pump.

Worry about status of cat, who was thrown. Befriend cat if possible.

There is leather armor of all sorts and sizes. You aquire some.

You hop on the screw pump next to the goblin. Your feet don't quite reach the pedals. You say hello in kobold.

How do you go about befriending the goblin?