So instead of trying to repeat the steps of the knot, form a set of verbal directions in your mind. Then close your eyes and picture yourself doing them. Then grab some rope and try with actual rope, again with your eyes closed. Repeat the same knot 10 times a day for 10 days.

This method works really well for most because closing your eyes removes all extraneous info. You see the model of the knot and the instructions for tying it, not the messy tangled up physical rope that you aren’t even using yet.