People who say you can't get anywhere in 2 months are lying. True, you can't with the pure AJATT way (since AJATT people are scared of output) but if you take real Japanese classes in Japan, you'll be speaking basic Japanese in 1 month. It will of course be very basic, but enough to get around.
Believe it or not, output needs training. If you're completely fluent in a language without having spoken it, of course you'll be able to, but if you're new to a language, you can't hope to actually speak it without training.
Unneeded output isn't good since you'll make mistakes but you're in Japan right now and you have a golden opportunity to speak a lot and you need to output japanese to enjoy yourself. So do. Just talk a lot. It doesn't matter if it's just single words at first, keep talking. Find people who don't mind pointing out errors and helping you, and in a week or two, you should speak basic Japanese just fine.
Believe it or not, output needs training. If you're completely fluent in a language without having spoken it, of course you'll be able to, but if you're new to a language, you can't hope to actually speak it without training.
Unneeded output isn't good since you'll make mistakes but you're in Japan right now and you have a golden opportunity to speak a lot and you need to output japanese to enjoy yourself. So do. Just talk a lot. It doesn't matter if it's just single words at first, keep talking. Find people who don't mind pointing out errors and helping you, and in a week or two, you should speak basic Japanese just fine.