Great title for your thread. The fantasy is that you think you're well protected with a .22, and the reality is that you're not. There is a reason that SWAT teams don't carry Buckmarks. There is a reason the USMC doesn't use 10/22s--yes, their rifle is nominally a .22 caliber, but it's doing better than mach 3. The reason is that .22s don't reliably stop people in the circumstances that we are likely to face.
Yes, it's true, most murders happen with a .22. They are typically execution style, two shots to the back of the head on a kneeling victim. Don't be an idiot. A lot of the time with a 9mm, 40 or 45 the bad guy doesn't give any indication that he's been hit, even while he is busy dying.
As far as your shooting ability, try this; have a buddy randomly place 3 numbered IDPA targets in front of you with your eyes closed. Have him yell "threat" to start, you open your eyes, draw and he calls out the number of the bad guy. Give yourself a par time of 2 seconds to get as many rounds off as you can (with the draw included).
Then do this. When he yells threat, open your eyes, and move laterally fast while drawing. Again, give yourself 2 whole seconds for as many hits as you can get until he yells stop.
I predict that those exercises will be an eye opening and depressing reality check for you.