If I were to guess, I'd venture that it's your layout hopping that got you. I was frustrated too when I switched from Dvorak to Colemak, but I felt it was the right thing to do for me and eventually when I had forgotten most of Dvorak it all started feeling natural again.
Eventually when the dust settles, you may find that Colemak makes your life in a QWERTY world easier. I don't mind so much having to use the odd QWERTY keyboard now, and I remember how much more alien they felt when I was using Dvorak. Not just shortcut-wise either.
Some people seem to be able to hold a bunch of layouts in their motor memory at the same time, and they claim to learn them much faster than I could. Others struggle to learn a layout in a year or more. What constitutes a long time depends a lot on who you are and where you are mentally.
Also, from my piano practicing days I know that if you let errors settle they're hard to uproot. Maybe you've gotten some bad habits while learning Colemak? Try to stop completely sometimes when you make an error, and feel within yourself why you might've made that error and if that particular error happens a lot. For me, most of my errors these days are transpositions in which I type letters in the wrong sequence. I shouldn't think that these errors are heavily layout-related but I don't know for sure. And I notice that my state of mind plays in a lot.
My advice would be to not cultivate your frustration. Play typing games if they appeal to you, or just use Amphetype or similar tools to type away. After typing through a couple of books I felt wonderful and reveled in a newfound typing flow!
Last edited by DreymaR (27-Jun-2013 08:15:29)