Good point. You just see your errors more with higher magnification, doesn't mean that you aren't making them with lower magnification. However, seeing your errors with a higher power scope can also start messing with a shooter mentally and throw them off.
I suggest using "The Force" if you come up with this mental block. Start by moving small objects around your house with telekenesis. If that doesn't work, you can always just try practicing shooting a lot with a .22. After a few hundred (more like thousand) rounds, you should have seen a pretty noticeable difference in your ability to shoot in a field position.
A lot of shooters also gripe that they can't find anything in the scope when it is higher than 6x too because the field of view is too narrow. Shoot with both eyes open, helps pick up targets much faster and stay on the target easier.
Shoot during your natural respiratory pause, keeps that nasty heartbeat from throwing your crosshairs off.
I can't think of anything else stupid to say at 0330 in the morning, maybe my kid will start to feel better and I can get back to bed for an hour.
