For 10 years I've been an urban designer, but desided to focus on a new career and do what I love, Web Design.
After a few months learning HTML, CSS, PHP, SQL etc. around the web I got an amazing opportunity as front-end developer. Our company, making web-applications, wanted to focus more on the front-end. Now I am responsible for the UI and UX, working a lot with Angular JS.
To everyone who wants to be a coder: YOU CAN DO IT! There is so much documentation and so many tutorials and courses on the net. As long as you love it, have a feeling for it and are determined, you'll get there.