For the last time

It feels kind of scary to be doing everything for the last time.
Last day of work a couple of days ago, last haircut a week ago, last trip out of Wellington yesterday. Marie raised an interesting point yesterday: I have no firm idea when I will see everyone again.
In some ways it would be easier if I was just going on the bog standard working holiday visa, because I would know I would be back in two years time. As it is, I have no idea when I will see people again- it could be 6 months (when they come and visit, hint hint), it could be 6 years.
What do you call my combination of happiness and sadness- is bittersweet the right word here? I do numbers, not words...