My brakes work well enough while going straight. However, when I am sharply turning the car and braking at the same time (like when I’m pulling into a parking space), the brakes don’t work. This is potentially dangerous for the pedestrians/other cars near me when I’m parking (but no accidents yet). A quick brake check by my mechanic while the car was in for something else showed nothing out of the ordinary in there. It’s a 1995 Chevy Beretta.
Questions: Has anyone else had this problem? What is causing it? How is it fixed? Is this something that a tinkering amateur can do, or should I go to a professional.