Is it realistic to find a job in Tokyo with little japanese?

I’m thinking about doing a working holiday year in Tokyo. I’m finnish and have graduated high school but that’s it. My current plan is to save up enough to support myself for max 2 months without a job. I don’t speak japanese but I think I could get up to a basic level before leaving. Is it realistic to assume I would be able to find some kind of jobs for a year? I’m fine with cleaning, hospitality etc.