side window sometimes seems to get? stuck when going up. If I push it up at the same time I push the power switch, it will go up all the way. Is it the switch or motor or what?

pull the door panel and lube the tracks and joints b4 you need a motor. do both sides while you're at it.

This may be caused by either you motor or the window regulator. The motor may be weak and needs to be replace to work properly again and it may be that the regulator is in such a bind that the motor doesnt have enough power to help it up. but its most likely the motor going out.