Psychologically reversed
Our subconscious mind acts as a chock absorber between the harsh reality and our conscious mind.
Whenever a problem arises, it finds a solution.
Unfortunately, sometimes it has the tendency to “over use” that solution. Indeed, this solution, maybe suitable to start with, might not be of any benefit any more and might even work against our current interest.
Our subconscious mind is usually against the introduction of any change and it'd rather stick with the solution it knows (even if the solution is no longer beneficial to us) than go for the “unknown”. This is why, somehow, sometimes, although we really want to change, we find ourselves unable to do so (a smoker cannot quit, an overweight person cannot loose weight, etc.). The person is then what is called "psychologically reversed". When this reversal is present, no progress can be made with EFT (no matter what form of EFT you use - full basic recipe or any other shortcut version or indeed HEHT).

Luckily, there is a very effective and quick way of getting over that psychological reversal using EFT. Psychological reversal is only an obstacle to EFT. Note that once you have got rid of your reversal on a specific issue, you have not resolved that issue but simply cleared the path for EFT to work.