I have two kids 6 and 8, and a girlfreind (for 14 years). I just can't help having a side project. My advoce would be to just keep trying. Focus on one project. Do small to do lists to keep crossing things of. And get something launched!
Once you have people using your stuff, thats a great motivator.
Eventually you'll find something you just can't let go. Or at least I did.
Right now I'm doing http://muscula.com
And I also have http://obsurvey.com that I started in 2007