Long Back Swing

Hey needing some help. I don't have a video, but basically I have a really, REALLY, long back swing. I'm right handed and my left arm tends to break as I'm going back and my wrist also tends to hinge to the point where my arm if straight would be at a great position but since its bending and my wrist hinges the butt of my club is literally straight up rather than more parallel to the ground.

What are some tips to help with this?

I've tried to go and practice just half swings with a wedge to try and help shorten it, but when I go back to the full swing to no avail.

Any tips appreciated! Thanks!

Make sure when you make your back swing your weight is over your right leg and not your left. Make sure the left shoulders turns into or under your chin. Maintain a 90* angle with the club and the right arm. These three things will keep you from over swinging.