Stuck key

[David59]

My ignition key is stuck in the barrel and only comes halfway out.
It's been like this for about 6 months now (think I had originally suspected it was a damaged key from the start and consciously never used it)..till then!
I used to have to leave it in put a krooklock on and use my other key to lock the doors.

What do you think are the chances of removing the ignition barrel and disassembling to remove the what must be a damaged key.
Many thanks
David