I had a similar experience when I was building my cab. I had so many ideas and family commitments that made the project harder to finish.
I think the hardest part of the project is finishing it. I cannot speak for the others here, but I'm always not happy with the final result and want to tweak it further. Closure for my cab is a fantasy.
You must have wanted the controller(s) to play MAME or your favorite emulator. Was it something on the site or Saint's book that got you motivated? If it was an everything panel, I would understand the difficulty on getting back on track.
Experience is key. Get some wood and make a simple box control panel and add your buttons and joysticks or your trackball. You would be surprised what you can come up with with just some simple shelving panels and some 2x1s.
My woodworking skills are horrible, but are getting better with practice. I'm sure you will come up with something that will kick start you building that perfect control panel.
If you have questions, just ask. Most of us have been there before.
Have fun!
