loosing your emotional support people

Today I went on a trip to visit my sister in college to celebrate her 21st birthday today. It's on Tuesday but now that I'm a wage slave with only 2 weeks of PTO, We decide to go on the weekend. It was a family trip.
My family is kinda young. The oldest is 27 and the youngest is in high school. We are all pretty close still.
I was thinking about the fact that in a decade or two, we will all be apart from each other. Probably in different parts of the US, if not, the world.
I still live with my parents; I've never been apart from family for more than 6 months at a time. It's weird that I want to leave and go as far away as possible but I also want to be with my sisters. I've never met another group of people who make my laugh as hard as they do.
I'm going to miss that.
I've been very stressed lately. We have a big external review coming up next week. I'm not really part of the review as I'm just the department coordinator, but I have to prepare everything and order the lunch and printing all the name plates.
It's not that much from the outside, but this is stuff I had no idea how to do. I'm not properly trained to do. Whatever. The semester is almost halfway though, I'll be done soon.