HTML/CSS is like basic literacy. CSS preprocessing (SASS) is easy and essential to keep your projects flexible/maintainable, so definitely take a couple hours

HTML/CSS is like basic literacy. CSS preprocessing (SASS) is easy and essential to keep your projects flexible/maintainable, so definitely take a couple hours to learn that now if you haven't been using it already. If I were you I'd focus on mastering javascript as a next big step. Javascript is great because it can be used on the frontend (e.g. jQuery) and backend (e.g. Node). Most of all, no matter what you are studying, make sure you are producing things that you can show people as you learn. If you're not on github, get on github and upload your projects; ask anyone you can for feedback. Without degrees or work experience, a portfolio of projects you are proud of is what will help you stand out.