Congratulations on learning Colemak! I made that journey myself and haven't regretted it once since. I did have to relearn QWERTY, frustratingly, but luckily it isn't nearly as difficult as learning a layout for the first time, and I can now switch between them relatively easily. (For me, a few years on, I now type at 100-120 WPM on Colemak; I was also at 70 WPM four weeks after starting.)