What's there to complain about?

Really, I have nothing to complain about. I am happily married, with two adorable (most of the time) kids. We are comfortable economically, at least until the euro/dollar busts, inflation rears its ugly head, or a dozen other scenarios where the economy crumbles. Or if we can't get work.
I stopped working earlier this year, to focus on family for a while. My son starts kindergarten in the fall, and we had to learn how the whole thing works - schools, applications, enrollment. After some research and musing, we decided to stick with the assigned public school and review from there. It's a little crazy to agonize over kindergarten, no?
My daughter started daycare a month ago, and this past weekend had her first fever since. Curiously, she handled it all well and just rested. My son came down with a fever a day after and moaned through it all. He puked, had diarrhea and nosebleeds. I hate it when the kids are sick - I ping pong between worry and irritation all weekend. I thought I wouldn't worry about my son as much as he is older, but couldn't stop trying to interpret the different symptoms online. As usual, hubby is the level-headed one and got us through it all. Happy Father's Day, love - we'll make it up to you!
Which brings me to - what now? Everyone's pretty sorted for the fall, which is when I hope to work again. I left a field in which I have worked for the past 10+ years. It was something I lucked into and did well in. I could continue doing it...what else is there? Where I don't have to start from scratch? I admire people who have dreams and/or enjoy their work. I knew I wanted an income, and what I didn't want to do. And here I am, with the opportunity to find something I really like to do, and I don't know what that is. The good thing is that I am getting time to explore zumba, yoga, and other things I haven't had time for.
I want time for family, but not all the time. The kids are growing more independent day by day, and I don't want the challenge of re-entering the workforce after a long absence. Hubby says to just enjoy the sabbatical until it's time to get back into the game. The consummate worrier that I am, I'm already obsessing over what's next.
The yoga instructor today suggested that we thank our inner critic for stopping us from making mistakes, but to also remember that we don't have to be perfect, to try new things. Perhaps I can apply this lesson.