When I first discovered EFT I too was greatly concerned if it was something that I, as a Christian, should be practicing.
Through speaking with another Christian and research I came to this conclusion: I would only use it for good and
after all I was only using non/affirmations while tapping on meridian points...the same concept as acupuncture ...except I am using my fingers instead of needles.
I consider it another positive tool. It does work.
It gives emotional relief.
It would NEVER and could NEVER replace God in my life!
Google EFT and Christianity and see what you come up with.