Is it easy to change a euro cylinder lock? I've looked at

>>963231
Euro cylinders are held in by like one screw right? They are meant to be stupid easy to change.

Are you in euroland? Then you might have one.

>>963231
>is it easy
depends on you
>how to tell
if it has the same shape and size and not inside a handle knob or anything

The screw that is holding the cylinder in is really tight and I can't loosen it. So I tried snapping the cylinder lock like it shows in https://www.youtube.com/watch?v=2lzX5sSTbig but the cylinder isn't breaking? What am I doing wrong? Is there a technique I am supposed to do?

>>963309
You need a lock vulnerable to snapping, which you should probably change if that's the case.
Try harder or call your locksmith? They don't bite.