I learned the basics of HTML and CSS from 'HTML and CSS: Design and Build Websites' by Jon Duckett, that was enough knowledge for me to build websites with it and look up the rest on MDN as I go. I learned JavaScript from 'JavaScript: The Good Parts' by Douglas Crackford, and figured out the new ES6 changes in a day by reading a few articles online (I already had previous programming experience so learning JS wasn't too hard). I learned Sass, Bootstrap, BEM, etc. mostly by reading the official documentation. And lastly I learned React and Redux from the most popular course on React & Redux at Udemy. I also created a GitHub and committed code there everyday, I made a personal website and hosted it on GitHub Pages and I made two small 'proof-of-concept' React app, so that I had something to show to my potential employers. That was enough for me to land a junior front end job.

I understand that's only the path I've taken and there are multiple ways to get there. Good luck.