suezqo,
About the desensitization - I'll try to explain it (and if someone can do a better job, please feel free to jump in and correct me). Basically, you try to practise giving yourself the symptoms of panic attacks and anxiety in order to help you become less sensitive to them when an actual attack occurs. For example, you get dizzy when you have a panic attack. Think about how anxious/panic-y you feel when that happens. Now think of an activity you can do in a safe environment to simulate the same 'dizzy' feeling (i.e.: for me, spinning fast while sitting in an office chair for 30 seconds to a minute). Think about spinning in the chair and imagine yourself doing it, then rate how anxious you think you will feel before, during and after doing it. Then actually spin in the chair until you feel dizzy. Experience the 'symptom'. Now compare how anxious you really felt before, during and after in relation to how you thought you would feel before the exercise. What you're trying to do is decrease your ratings over time with practise so that when you experience being dizzy in a panic attack, you are less sensitive to it because you have 'survived' it before and you know it goes away eventually. Hope this helps.
Dianne