well for begining you have to be able to meditate and block every thing out. then you focus on what exactly you want to heal say you have a sprained ancle you focus all your energy into re knitting your ancle mucles in the right places. this takes a lot of time and practic but eventuly you should get it. since you watch naruto it might be easier for you to imagine your energy as chakra at least that works for me.
if you wanna learn energy healing, it is very helpful to know how to make a psi ball. its almost the same thing, you just make a ball of the energy instead of healing with it.