SINGLE mom

Never has the title "single mom" felt more real and more tangible than it does now. Most of the time, I'm thrilled with my life. I have tons of fun with my son, we do lots of great things. This weekend, I took him fishing! Me! Fishing. Crazy. What's more is that I liked it. I could go fishing all the time. I am feeling like I'm doing a decent job of being mommy and daddy. (so much so that Orion has been calling me "daddy" almost as much as mommy lately).
Even though I love our life, and our time together, I'm feeling lonely. I don't know how to "get out there" or date or any of that. It's been a long time, and I've been focusing so hard on being a good mom, and doing everything for Orion. I just don't know how to do anything for myself.
How does a single professional mom find time to find someone? How can I be available, when I'm not? I'm emotionally ready, but the logistics of dating are really intimidating. Babysitters, time away from my son, fitting dates in to my crazy work schedule... all are obstacles.
Other people do it! Maybe that means I'm doing something wrong? I just don't know any more.