Ignition problem !!

I can't turn my key in the ignition I had no trouble with it sticking or anything before but now it just won't turn I turned the steering wheel a bunch of times and tried different things included unplugging the battery and plugging it back in to no aval.

I have a 2000 Grand AM SE 2.4L if you didn't already check

PS HELP ME!!!!

You need a new lock cylinder because the tumblers have jambed. Try sticking the key in the cylinder and give the key a good shot with a hammer, sometimes it will unstick the tumblers.

My car won't turn off when the key is switched to off. We have a 99 Grand Am. The engine shuts off, but the head lights, radio and all the dash lights stay on. You can pull the key out and it all stays on. We've had to disconnect the battery to turn it off. Every time we take it to the shop, if turns off fine!! We got it on video now for the next time the manager says no! What is wrong, what needs fixed??