Unfortunately, trial and error type learning doesn't seem to work for me.  I chalk it up to being dyslexic and not able to process the mixed up information garnered from trial and error in order to put it in an orderly fashion that makes sense.  I need structured learning so if the only way to learn how to do that node stuff is trial and error, then I'll never be able to do it.

"It is good to see ourselves as others see us. Try as we may, we are never
able to know ourselves fully as we are, especially the evil side of us.
This we can do only if we are not angry with our critics but will take in good
heart whatever they might have to say." - Ghandi