Job interviews

Had 2 job interviews this week. One for next and one for argos. The next on wasnt to bad because it was one on one, however, the argos on was a group interview. I had to introduce someone at first and i could feel my heart pounding in my cheast and i was sweaty and i had to force my voice out and somehow form words within that! Then later on i had to present a 'super human employee'. Basically he/she had to have the ideal employee presented in super hero form. I did this wil 3 other people and, again, when speaking i had to force my words out and i went red and felt my heart pounding. It was horrible!