How to develop Empathy?

It is really more of something you are born with. As a mma fighter I don't see why you would want empathy. It can be a gift and a curse.

In my experience , being an empath , You're born with it and it develops as you get older & wiser :)
It will get stronger , meditate & concentrate
It will come naturally :)

It shouldn't be difficult to improve your empathy skills, I've always been an empath and didn't learn how to read auras until a few years ago. A good starting technique is to focus on one spot, usually in behind the person you're looking at, and allowing your vision to blur around that spot. Without looking directly at the person, focus on them and you should be able to pick out their aura. With enough practice you should be able to learn how to see auras just by wanting to. In my experience this also works with ghosts.

If your interested in empathic telepathy, I can't give you any pointers on how to do it (I learned through experimentation, but can only remember a method that works subconsciously because my memory stinks), but I can confirm it is possible.