Q: My steering wheel locks up and the car turns off whenever I slow down.

One day, when I was parallel parking, one of my wheels got stuck awkwardly on the curb. When I tried to drive forward a little to get out, the car turned off completely and I couldn't press the gas nor steer since the steering wheel was locked up. So I turned off the car and restarted it and it seemed normal. It let me back out of the spot and drive. Though, now every time I slow to a stop, my car will do this uncomfortable chugging and will feel like I am out of gas or something else serious, followed by the car turning off when I stop at stoplight or stop sign. One time it even happened just from slowing down before a right turn. Every time it happens, the car allows me to turn it on again with no problem. My dad recommended getting injection cleaner, after doing that my car seemed to gradually stop dying. Even though it's not happening fully, I still notice the awkward chugging when I press the gas, like Im shifting gears but maybe it's something else more serious?

My car has 150000 miles.
My car has an automatic transmission.