Do I have to emigrate to work abroad? Or do you need to go through other formalities or something?

For example, Japan and Singapore have training posts with skilled jobs, which are actually cheap labor (skilled posts). You can apply for a work visa, but you should find a good work unit yourself.

Some countries allow immigrants, apply for immigration and are approved to work in the country. It usually takes about two years to apply for immigration.

There are also student visas to enter the country, and there are some restrictions on working. Generally, only school jobs are allowed, but cash workers also have many choices.

There are illegal immigrants, who are pure black workers.

It will be difficult to work abroad. If you have worked at home, you don't have to adapt. If you haven't worked, you should be prepared.