Trying to make a move to Japan

Hello,

I'm a 20-year-old from Zimbabwe. Also a university student studying Bachelor of commerce in Business management and Information technology and I've been thinking about going to Japan after university.

I've been self studying Japanese for about 5 months now and I'm hoping that by the time i graduate university i would be better.

I need help with some couple of questions

1.Should i be worried about discrimination and racism in work places, neighborhoods and public places because as an African individual I'm very worried about this issue

1. What jobs can I get with my degree

2. 1.Is it going to be worth it moving to Japan by the time i will finish my studies (2nd year now and doing a 4 year program)

Also I've seen a lot of foreigners are interested in Japan, should I be worried worried about this?

Any advice for me? I don't have a friend or a family member who lives there so I'm just trying to make a move but not sure if it's worth it.