The same happens to me with the struggle to differentiate truly choosing and prohibitive thinking.
Sometimes I go shopping and I feel prohibitive when I choose to do not eat something because it makes me feel bad after I eat it, and I remind myself with my MOTIVATION to CHOOSE do not buy it. But I think that there is the other concept that needs to be integrate here, in this decision we made to buy or not to buy something that is DESIRE.
I think that the three concepts needs to work together. Its like the three legs of a table.