You didn't mention your career path after you quit your design job to develop your programming skills. I'm curious how you landed your first job without a piece of paper and do you use go in your day job?
I spent 2.5 years at home learning. To eat , I took part-time temp jobs. Anything that would keep me at home most of the time, while still enabling me to pay the bills. After that I got a job as a C# developer for a company.
Without any working experience (as a programmer) or paperwork, I knew this was going to be difficult. It turns out that some companies value enthusiasm and the ability to demonstrate you can and will learn fast, as more important. I had both of these on my side, so I got the job.
I did not have a Github profile at the time, but I made sure I showed them a CD with my most notable homebrew work. I would advise a Github profile instead though. Just put everything on there that you feel might be worth it. Even if it doesn't really have any use. It's about the way you write code and go about solving problems that is interesting to the interviewers.
