Most Helpful Guy
Most guys your age or a little older aren't interested in getting awakened by a screaming baby in the middle of the night who needs a diaper change. They want to enjoy themselves.
The guy first has to make enough money to support a family. It's wise of him not to commit to do that until he can.
Either look for guys around 30 or so who have a stable job or put it off until you're a bit older (say 25) and have more work experience and, if applicable, a degree, so you'll have an easier time re-entering the workforce.