You probably will not get a job in Japan without a Bachelor's degree, as I'm sure you've heard 100 times.
This is a thread I usually refer people to:
What's the easiest method...
You can go to English speaking international universities in Japan, but they would cost a lot, just like college.
Basically, here's how it goes:
You need a place to live in Japan.
To get one, you need money.
To get money, you need a job in Japan.
To get a job in Japan, you need a worker's visa.
To get a worker's visa, you need a Bachelor's degree. (99% of the time)
To get a Bachelor's Degree, you need to go to school.
To go to school, you need more money.
So start saving money, is the only advise I can offer you.
Or you can find a Japanese citizen to marry you, get a spousal visa, and skip all of this.