Are you USian or European?

Here are some specifics:

Learn Chinese, use HelloChinese and DuChinese apps alongside Pleco Chinese Dictionary app.

I would also suggest getting an app like Tandem where you can talk with native speakers.

If it’s possible where you are located and you can afford it, find an in-person tutor, they can help tremendously with body language stuff and all that.

You’ll want to spend lots of time learning about the history of China, culture etc

You also should start looking at jobs open to international workers and see if they fit your career/skill goals.

As far as I know, you need a bachelors at minimum to find any work. Which I must state, finding a job is going to be difficult.

If this is something you really want, you are going to have to seriously commit to it for many years. Not trying to scare you away at all, but Chinese immigration laws are very strict and there is always preference for Chinese workers first. The stronger your mastery of Mandarin, spoken and written, and better understanding of current culture/society and modern/long history the better.

You could also look at Vietnam, Vietnam is a beautiful country and is a bit more open for immigrants and is also a socialist state.