bartok burlesque #1

[andhow04]

my teacher asked me to learn this piece this summer. D@MN its givin me lots of TROUBLES! can anyone give me tips on practcie??? mainly its the fast wide spread eights. i just cant get the notes right. lh gets tired, and rh when it is 5-4-3 fingering at the end of the arpeggios gets wrong notes all teh time. ccant seem to fit the fingers in there!@!!!! i practiced in rhythms and hands alone. with metronome on every quarter and metronome every bar. just cant play the notes!
HELP!!!!

[andhow04]

OH!! AND, my score says exactly "DOTTED QUARTER = 104 - 96"
I have a feeling what it really means to say is, "DOTTED HALF = 96 - 104"
but am i wrong? is it supposed to be two beats (dotted quarters) to the bar? and is the range of tempo between 104 and 196 (ONE HUNDRED NINETY SIX) or between plain normal 96 and 104??