Balance

I need to find balance. But how?
I have three children and a wonderful husband. A new home. A demanding job. Fabulous friends. Loving family. I hobby that I miss. Etc. Etc. Etc.

Where and how can I balance all of this so that I feel fulfilled?

I have an exciting opportunity to work in a clinic this summer, that appears to be VERY similar to the one I would love to own one day. I think it would be so much fun and I would learn a ton.
On the other hand, my children are only going to be 4, 2, and new for this summer and I don't want to miss out on anything.
Plus we have a new house, that I have been having a great time trying to make into our home. It's fun. And during the school year, I don't have time to make things like I want to.
There are friends in my life that I feel like I never see. I miss just hanging out with them, whether it is with their kids or not. I miss them.
My family and Gordon's family used to get together for family dinners every once in a while, and now for some reason we don't.
My kids want to do so much, join things, play here, visit there, and I am having trouble making it all happen for them.

UGH!

so much, and so little time! I need to prioritize, I guess and make some decisions. I know I can't do it all, but I find myself asking why...

Balance, where are you? Or do I just need to learn how to juggle?