Hi Artsygirl, I have been there and I am still there, 32 at the end of May now. Just no direction--I have a general studies degree because I could never figure out what to do. While I'm ok with no significant other or kids, I'm not ok with drifting along like dead wood in a river.
Cosmetology would still be a great thing to do, even if you don't get a certificate or anything. You can just pass out a business card out and do bridal makeup on Sundays when no salons are open. Always start small and see where it goes from there. There are so many people out there looking for work and it seems like we're all getting screened out for one reason or another.
Post your resume on career builder, monster...you'll get emails to be an insurance agent (lol) and maybe a recruiter will call with an odd job here and there. I went to a job fair recently and it was all sales... I am a food demonstrator so I get tired of these weird dead end jobs. If I were a "normal" ambitious person maybe knocking on people's doors asking about whether I can help them with social media for their business would be fine... But to me it all ends up like a rat race in the end.
I don't know if this even helped because I rambled on a bit... but just know you're not alone in "not hitting the milestones" you've wanted to hit.