So you built your website. Congratulations. It was a labor of love, and the Internet thanks you for your contribution.
The pathways to technology careers seem to be all the same: you loved video games and computers as a child; you went to school for computer science, engineering, or math; you build apps, games, websites, and languages in your spare time; and you generally are amazing at all things computers!
Responsive design: What was once the frontier in mobile is now a standard part of business and content strategy for companies of all sizes.