Just curious, as I've been learning about this lately - are you using NLP techniques for self-healing?
Actually what I use mainly is a technique called theta healing, and I also mix in a little bit of polarity work. Theta healing is a practice where you imagine yourself going up (or out, in, or just qualitatively transforming) to what you consider to be Divine space. In the theta classes you take they will actually say that you are connecting directly with Source (iow, God). While I have a hard time saying that I can actually comprehend something so infinite, I think the point is that you are connecting to whatever you perceive the Higher Power in the universe plus to be, and whether your imaginings coalesce with reality or not isn't so important as long as your putting your energy into the practice. This guided imagery puts you into what's called the theta brainwave state which is like right before you go to sleep, and for many (myself included) your eyes twitter as if REMing. Depending on your background you may have heard of this as either the hypnogogic state (scientific) or the ether (metaphysical). While a bit spacey in this state you are nonetheless conscious of what you are doing and experiencing, so there is no room to deny responsibility for anything you do while in it. From there you can command Source to perform healings, do readings (though I don't recommend future readings without the ability to empower anyone with them), do what are called body scans (intuitively viewing the body), change any belief or notions (especially if interfering with health), and much more. [Note: some people balk at the idea of "commanding God", however, command does not really mean demand as we commonly use it, but "I command" is rather equivalent to saying "Work with me" or "Hold my hand"] Then such is actually done by you "witnessing" the healing or whatever else taking place. This witnessing is done by intuitively entering the person's space and "seeing" ("hearing" and "feeling" are okay too) what is going on. Some "see" this literally, others symbolically. Obviously, if you are doing this on anyone else, get their permission first.
While this, to me, has been more effective on others, I do use it on myself, and this can be done preventatively as well as curatively. You can go in theta and say, cleanse and open your chakras and other such things. I find that I stay healthiest when regularly performing theta on others, rather than just giving myself tune-ups. Whereas, theta is taught as something that is done from a still posture, and distance to or from another doesn't matter, I have personally found others be most receptive (and therefore increasing its effectiveness) when I put my hands on or around them when performing theta healing, which is largely a polarity therapy technique I learned from a massage therapist (and my best friend, we took the theta course together). In short, I put my hands on either side of the afflicted area, or either side of the chakra pertaining to the "issue."
Additionally, I use muscle testing to see what the person's (or my own) actual "beliefs" are. This could be a good practice in finding a mantra to see if it resonates which your body. And if it doesn't but sounds like it would be a good anyone, theta work can be used to then change your "belief" so that the mantra is congruent with your psyche.
I hope this wasn't too long-winded, but conveyed the necessary info.