I was trying to suddenly stop, one day, due to a quickly changing light. I was going too fast, i dunno how?

(yes, i won). lol. Ok, but, seriously, I hit the brake pedal and it felt real hard, barely moved.
Well, the car was barely stopping. It will only do this at certain times. (Mostly when i need to stop in a hurry) Also, when turning, the steering wheel will get stiff after the "apex"of the turn. (Keep in mind i need to get an alignment done.)
I was thinking, maybe my booster is going out? Booster and ps pump? Or just the alignment itself, messing with my steering? Any suggestions?