[WingsToDiscovery]

Dude, you're not becoming a manga artist here.
Go to college, get a degree, and find out how to get a visa. If you can handle being a teacher, know that that's pretty much your only option and it's all you'll pretty much ever be able to do here until you speak Japanese.
Your artwork (which totally outclasses anything I could do) can't touch the artists who are already citizens and obviously speak Japanese.