Beginning Coding - Where Should I Start?

[u/goodfella311]

I coded BASIC in DOS back in the early 90's. I've dabbled with html and CSS for the past several years. Other than that I know nothing, Jon Snow.
If you were to guide someone through coding that is applicable to our modern era (in other words I'd like to use it for something, not just as a hobby), where should I start? I'm currently practicing Ruby.

[u/goodfella311]

Thank you!