Yes, the job market is in a fine state. If you're competent, you won't have a problem.
You don't need to spend a penny (or too much time) to learn web development if you put in the effort. Mozilla Developer Network [0] is what I recommend as a learning resource. I'd advise reading the JavaScript Guide if you have previous experience; if you don't, there's stuff for beginners there to. Learning some HTML & CSS will be most helpful.
I'd advise that after you learn JavaScript, you learn React [1]. Take the tutorial. I'd recommend watching one of the React talks to explain to you what makes React useful.
I'd advise you prefer learning Node.js [2] next, and it's probably a better choice than learning PHP or Ruby for the purpose of server-side web development. Perhaps take a look at TypeScript after.
To become a good programmer, branching out is helpful. A requirement to be a good programmer is that you have some basic level of CS knowledge (there's many free ways to study CS). Learning some C/C++/C#/Java/Rust/Go is also good, but this is not a priority to getting your initial webdev jobs. This isn't necessarily going to be useful in getting a job directly, but improving as a programmer will help indirectly.
HTML & CSS mastery is a lot less important for a web developer (as opposed to a web designer) than JavaScript. You don't need to memorize everything, but you should be able to get by with Mozilla Developer Network open for reference.
Other resources to check out:
Eloquent JavaScript
/r/JavaScript
Free Code Camp
javascript.info
[0] https://developer.mozilla.org/en-US/docs/Web/JavaScript
[1] https://reactjs.org/
[2] https://nodejs.org/en/