try to keep a daily record of where the indicators
such as $TICK , SOX , Dow Jones are when the SPY and QQQ
make their daily ranges
Also note how often prices seem to gravitate to the big #'s
00 , 25 , 50 , 75 100 etc intraday
also consider how the $dollar , Bonds , Gold , Oil is doing intraday
also note the overnight ranges in the futures SP +ND
also try to come up with a projected
daily range and perhaps scale in and out of those parameters
also note if one of the above is strong or weak relative to the other one intraday
hope this helps a little bit
good luck ... its not easy