I sometimes have this feeling when I'm considering doing something I'm not good at. It says: "Doing things incorrectly is bad." This feeling of course happens independent of whether doing the thing "wrong" actually matters in any sense. It happens frequently even when "right" or "wrong" performance makes no difference. Even when doing the thing badly is better than not doing it at all.
This is pretty silly. It is especially silly when the thing I am doing is explicitly a practice activity. When you practice a skill, it is explicitly because you are not as good as you would like to be. It is so you can learn to do the skill better. If you're not going to practice until you can do the practice activity "correctly," you may be waiting a long time, and possibly forever*. The whole point is to do the activity so you get better at the skill. The doing creates the necessary pressure to get better.