Dragon,
I think it's good that you want to learn PRing. However, you do need to change your approach. Don't start doing something fearing you won't make it. It doesn't help a bit. Instead use your imagination. See yourself calm and happy, using PR for your studies and having enormous success with it. Feel that you can do it. Believe in yourself. You've got the equipment. Only your belief and habits are stopping you. (Good news: They're changeable!

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About your problem with neurosis: You should definitely try meditation. If, for some reason you can't or don't want to meditate fear not. Autosuggestion and visualization may be very helpful to you. I think you should start using them right away, today. There are also chinese methods like 6 healing sounds and inner smile meditation, which may be of great help. Yoga can't hurt. Or exercises '5 Tibetans'. What I've listed here are all methods for physical/emotional/mental/spiritual growth and they all originate from east. Some of them are done with your mind only (like meditation, visualization andinner smile) while others egage your body too (yoga, 6 healing sounds, '5 Tibetans').
These are the methods I use (obviously not at the same time, but depending on situation/mood/urge etc.), which means I do have experience (it's not only book knowledge). If you'd like me to recommend some books to you, please ask.
Homeopathy and Bach therapy are two 100% natural methods, which can help you a great deal. Their power is indisputable, and so are they results. I do not know if these remedies are expensive in USA, but alopathic medications for conditions like yours are the most expensive (because they don't help and most of them make matters worse, simply because they treat condition instead of person). If you can find someone who practices one of these healing methods talk to him. You might not decide to go for it, but you'll learn a lot.
If you have any questions about anything I posted (or did not post and you think I can be of help), do not hesitate to ask, whether on this forum or e-mail.