Is it hard to live in japan?

Question:

im currently 16 with 17,000 dollars saved which is 1,300,000 yen if im not wrong. i would like to move to japan when i turn 18 ive been learning how to read write and speak the language so would it be hard to get a job (with a high school diploma).

Answer:

Not going to happen, John. Sorry. The chances of getting a job without any job or language skills is less than zero. It won't be hard, it will be impossible. Sorry for being so harsh.
You need a BA / BS degree to qualify for a work visa. This is what the Japanese government requires. You also need a job offer before you get there. This requires having a job skill a Japanese doesn't have. If they can do the job, they will always be hired first.
The earthquake / tsunami put thousands out of work.
You can't stay more than 90 days without a visa.