how to become web developer as international level

Good evening!

I am korean and 32 years now

Recently. I have just started coding as html, css and javascript.

Firstly, I got old and I am so worried about getting job in US but this is my dream now.

I would like to turn out be web developer. (start as front end developer.)

but I dont know how to start and my ultimate goal is getting job in US.

Can you give me guideline and can you give some advice to start as a entry web developer.

any recommendation for course and tips for me?

Thanks