slidealfaDemo 101:
The less you try to aim, the more you will hit
Does that just apply with every class? For me, when I'm not sweating and constantly worrying about my aim, I usually hit a lot more shots. I guess that's pretty naive to say, practising will never ever hurt your performance.
No, just demo. Also don't focus on aiming, focus on your movement.
working your movement will overall improve your aim