1995 toyota camry 4 cylinder engine key ignition problem

My car was working fine yesterday, but today when I inserted my key; the key won’t turn at all. I have try changing the shift control to neutral and jerk the steeling wheel. I have also went and copy my key. When I inserted the new key, it finally turn all the way, but then it got stuck in the ignition. After a few hour I got the new out of the ignition and try again. This time the new key can’t turn all the way. My uncle believe that the key ignition sensory is the problem. Can someone help me?

It sounds like your ignition cylinder is just worn out. You will need to replace it with a new cylinder which will come with new keys. You will need to keep your old keys for locking the door and trunk.