key will not turn in 04 impala, completely locked up in off position

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first key wouldnt come out of ignition(fixed) 2 days later wouldnt crank over (fixed) next morning key will not turn at all locked up! My shifter nob isnt going in all the way I looked at all wires everything is connected fuses all good, have a code reader but cant read nothn cause I cant turn key. Can I just go by a new shifter, Will that solve some of my problems or calln a locksmith to drill out key lock and maybe he can unlock it?