I have a John Deere 790, which I recently purchased,  and yesterday a bad person tried to start it without the key and damaged the ignition/key slot so that I can't insert my key to start it.   The entire mechanism now seems loose as though maybe he tried to take it apart/out or ???   How do I remedy this?    (I'm an older woman and this is my first tractor, so I know next to nothing about them, so please be specific)   Is this something I can deal with myself?   Since I can't start it I can't take it anywhere 
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