1994 Other Saturn Models wipers

im sorry i cant make a donation at this time,christmas wiped me out.ill make one as soon as i can.i have a 1994 saturn sl2,the wipers work sometimes and sometimes only the fast setting works.i plan on doing the work myself,is it the switch,the motor,clutch?the wipers seem to work the best when i first start the car,then they stop.im a novice mechanic and would really appreciate any help i can get.great time of year for this to happen.thank you very much. chris