I don't mind your being didactic, just a couple things I don't understand what you mean....
your arms shouldn't go into the water above your head, rather in line with your shoulder.
you mean don't cross over... ? I try and will try even harder...
When you push with your hand, be sure to push back and not down. When your hand is at your hip, you want to break your wrist so that you're pushing the water back and not up.
yep I try
You also want to bend your elbow so that you can catch the water effeciently.
yep I try
They say that the crawl is the stroke you swim on your side. Do you feel like you're rolling enough?
yep I try
Can you have a Masters coach check on your stroke?
We have practices with our club but he never pointed out any grave errors (will ask him to be more picky).