The way I taught myself web development was: 1) The excellent Udacity courses (might not be free anymore, but they offer 50% back if you don't find a job). 2) Codeacademy for Javascript and jQuery. 3) Then, you need to build a project front to back. Choose a project that there is a similar one online that you can learn from. My first webapp is: http://sudokuisland.com 4) Google + StackOverflow

It took many months of work, but I definitely know enough to pick up whatever I need now for projects.