Steering Is Tight problems of the 2008 Volvo S40

I was driving on a main route at night around 730 and a car was trying to get in my line and I assume they did not see me. I tried to move to the left to get out of the way but my steering wheel was so tight I could not veer away from the curb. Due to this I have numerous repairs that need to be paid and my power steering was tight for serveral weeks, it was almost hard for a strong man to turn the wheel. I tried power steering fluid when I started to notice the problem and it did not help.