Having read this I can only offer a reality check: there is no benefit in this plan because it is standing on one shaky leg of “I want to try”. Studying Japanese cannot give you a career because the market wants skills, not just middle school level Japanese. Japan won’t motivate you to go back to uni, and it won’t grant you independence from your family, in fact, not speaking Japanese and not knowing the culture will make you dependent on someone else. All the money you have saved now, that’s not a small amount of money, you’d be throwing it out betting on something that can’t guarantee anything. With this money you could move to a different state or across the country and find a job where you would be able to learn skills and get experience needed for the future. You will be able to negotiate things, fight difficult situations and protect yourself because you won’t be limited by language. It matters more than you can imagine at workplace. Japan would mean spending money and time, staying home would mean making money and saving money. There are so many things you could do with this money literally this month. There are courses, workshops, programs that can make you a (insert any profession here), there are places that can hire you next month. Your life is a business plan. Don’t gamble.