trouble with my power steering sr20det

[drivingtrails]

So my powersteering was making alot of nasty squeeling noise when i would turn the wheel, it had a good fluid level and so i checked to see if anybody else had this problem and i saw that it could be that maybe the belt is a litle loose, so i made the belt more tight, now it makes noise not as much as before but the the steering wheel feels a little hard to turn like if there was no p.s, sould i tightened the belt more or from what you guys hear is there something else i should do.
any help is good and well appreciated.