(*IS NOT SUPERSTITIOUS* (On your own as in, really on your own? :O I thought this was going to be a trip with your family?

In any case, the earlier you can confirm dates the better, because I might be able to request extra days off... and have you thought about where in Japan you want to go? Like, maybe you could go somewhere with a tour group, but then come to Tokyo and stay at my place for a few days before heading home.))