Answer 1

Personally, I think you are in a great position to make that decision, but honestly, if you are considered a full-stack developer, I would continue along this career path to achieve a premium in the industry. Let me explain...

Being a web developer since '95, you would not believe how many developers I've run across thatcan't stand CSS/JavaScript and will shy away from doing any kind of front-end development. They may dive into it a little, but some will struggle with the CSS aspect.
If you have both front-end and back-end skills (along with core database concepts and skills), you are the exception to the rule. A lot of developers don't have the ability to go from "soup-to-nuts" with their development skills so they focus on one particular area (back-end or front-end) and excel at it.

I wouldn't choose between either, but embrace both and continue down this career path. Being a full-stack developer is a definite feather in your cap and will make you more marketable.

Hope this helped! :)
@Sololearn

Answer 2

It depends only on you, ie you need to decide what language you will be learning, it can be web languages, or software languages! If you want to learn web languages, html, javascript, php, css, if you want to become a software developer, you need c ++, c #, java, python, ruby
@Sololearn

Answer 3

HTML > CSS > JS/PHP (both if you want)