Give yourself a break here. If I had a job, kids, and an hour commute you would have to put me in a rubber room!!! With everything that you are responsible for, its no wonder you have little energy left to create.
When I had kids, job, etc. I would take about half hour after the kids were in bed and fill graph paper notebooks with ideas for quilts. Seldom had time to actually do any sewing, however those notebooks full of ideas eventually led to me sending in a proposal for a book. Ok so it was 25 years later--but I had always dreamed of doing just that. Much to my surprise the proposal was accepted. So give yourself a break, you have a lot of obligations right now. As kids grow up and (hopefully move out) grin. You will then have more time for yourself.
I have a young friend (she has 5 kids from 5-14-there are twins involved here-grin) She works at the kids school, and has another part time job. She has a basket on her kitchen counter with some hand work in it. She sets a timer for 15 minutes, after dishes etc are done for the day. Its known, in her house, as "MOM TIME"--Took a while for the kids to understand this small bit of time, was just that, "MOM TIME" and do not interrupt unless someone is bleeding or the house is on fire. She always tells me its what keeps her sanity. I hope you can work something out to have just a few minutes a day you can call your own.