Learn from Brad Traversy
With the gradual rise of headless ecommerce, you're going to want to be well-rounded in areas other than just getting really good at modifying Liquid templates.
While it's impossible to know it all, a good introduction to a wide series of topics is Brad Traversy's Youtube Channel.
With over 2 million subscribers and 950+ videos, there is a plethora of information to learn from.
- Programming & Web Development Crash Courses
- Developer Discussion: Industry, Career & Personal Help
- HTML & CSS
- and so much more!
If you want to learn about web development and all the different things you can do in this space, Brad's channel is a great introduction to all sorts of languages and concepts.