pathetiqe,chopin etude and debussy

[paris]

if someone can give me advice about this things

beethoven-pathetique- 1.movement-tremolo in left hand and pedaling in grave, and how to keep rhytm

debussy-jardins sous la pluie-how to make pp on begining,and some exercises for thrills

chopin-etude op.10 n.1- how to get fast and keep clearnes

and if someone knows how to concentrate and avoid fear before performing concert? thanx