You have a VERY good background to make a go of website development. If I were in your shoes I would focus, at first, on sites that are mostly UI/UX. Make them

You have a VERY good background to make a go of website development. If I were in your shoes I would focus, at first, on sites that are mostly UI/UX. Make them work well and look good. On the programming side, focus on Javascript. This will pay off in building more responsive sites, for instance reactive programming, and it can also be used on the background. Because of your background, I think that you should focus on using node.js for the backend components. In particular use the Express framework because it is lightweight and therefore easier to learn. Do spend some time on pure Javascript learning such as reading Javascript, The Good Parts and doing Javascript tutorials and code katas. P.S. I'm in my 50's and I learn a new language every couple of years. 33 is young. On the other hand, a 33 year old has lots of experience in other areas that can be leveraged to make learning faster.