what should i do?

sometime this month i'm going to see a therapist, i dnt know what do do, my mind wont stop, it keeps jittering, i go blank, and i feel nervious yet feel nothing. i dont know what to say to her even though i've met her before and always went to her office when i was little.
also whats the difference between therapy and psychotherapy?
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Disorder | Rating
Paranoid: High
Schizoid: Moderate
Schizotypal: High
Antisocial: High
Borderline: Very High
Histrionic: High
Narcissistic: High
Avoidant: High
Dependent: Moderate
Obsessive-Compulsive: High
URL of the test:
http://www.4degreez.com/misc/persona...sorder_test.mv
URL for more info:
http://www.4degreez.com/disorder/index.html