Oh yeah, I'm a deep thinker. I'm pretty severely introverted, ie need a lot of time to daydream in peace or else get extremely stressed out with life. I think any mental problem that frequently causes distress will lead to someone becoming a deeper thinker. It can be used to our advantage, however. People's phobias often improve when hypnotherapy reveals what caused it. It doesn't cure it altogether, but makes it easier to do so if you have some things to tell yourself that you really believe. The trouble is, most people aren't in ideal circumstances to use these things effectively.
For example, my fear was very, very general - it went beyond fearing disapproval of myself and entered the realm of fearing the sight of people disapproving of
other people. [Edit: No, not just feeling sorry for them deeply - they usually didn't even care about it - actually fearing it, as in having the same symptoms and feelings as if the disapproval were aimed at me.] All in all, it was a particularly complicated one and so I faced it many more times a day than I would have with a straight-forward, specific fear. This played to my advantage due to the way phobias work: the less time between exposures in which you reduce the fear experienced, the less likely is your brain to revert to the neuropathways that that make you feel fear. Little facts like these, they come in really handy.
That's part of what I mean about understanding what has caused you to respond in the way you do to what you fear. Literally learn how your phobia works, down to the smallest detail. Know your enemy :wink: Then, being a deep thinker, you can analyse past experiences, knowing what might have contributed to how you felt, to do better next time. It really can work; I'm living proof
As I said though, personal circumstances are important. If someone's able to avoid being disapproved of very often, I think they're going to find it much tougher to cure a phobia of it. Better to be stuck with rejection a part of everyday life. But again, understanding these things will help because you can make changes to aid the process.