I'd been sim trading CL for months and couldn't get myself to trade live. I couldn't get over the mental block of trading something in which my average stop loss was going to be 2-4 times what I was risking trading my favorite stock, POT. Also the fact that each CL was equal to 1000 POT and I was trading 200-400 POT, so I had a mental hurdle that seemed insurmountable to me despite great success in my sim account.
My brother is a certified NLP practitioner. He worked with me once in late March and I was able to take the plunge live. I then explained my problem with letting winners run and he did another session with me and it seems to have helped me a lot.
In any field there are snake oil salesmen, but the basic concepts behind reframing, modeling and anchoring are quite sound.