Should I go to Japan or Australia for ME?

I am currently in grade 10, moving up to grade 11 later this year. I want to start deciding early on where I ultimately want to end up in my life. I already figured I want to pursue a degree in mechanical engineering but I am unsure on where I wish to pursue my degree. I come from a SEA (South East Asia[n]) country and I decided that I either want to go to Australia or Japan but I face a major hurdle for both. If I choose Australia, I would have to go for a good scholarship as my family does not possess that much funds. If I go to Japan, I would have to learn the language as most courses there are taught in Japanese. I would like to know a couple of things based on all of y'all's personal experience.

How is it like getting a job in Japan/Australia?
What are the work culture differences between them?
How does the pay match with cost of living?
How much prejudice might I face as I am a foreigner?
What is the general things I should be looking out for as a working college student during and after my time in college?

If this is the wrong sub to post this, please direct me to a sub that is more appropriate for my question.

by AmountHour9458