
Current art critics will probably never widely accept video games as art. There was a penny arcade strip which explained this trend throughout history. (Someone will probably reply to this with a link.)
Ultimately games will be widely accepted as art. But it won't happen until the current crop of respected art critics dies of old age, their names are quickly forgotten, and they are replaced by a generation that was raised with games and knows wherein the art lies. Then they will go on to snub there own generation's struggling art form and the circle of life is complete.
What I'm suggesting is that you can't rely on free time when it comes about randomly. You have to set aside the time to make it happen. It was still free time, but it was partitioned off just for this purpose.
For the first 3 months or I would work on it in the evening. I wasn't very focused and work was slow. One day on a whim I went to bed an hour early and got up an hour early and did more in one hour than I had done all week. Maybe I'm easily distracted but this is what worked for me.
Some people manage by the book, even though they don't know who wrote the book or even what book.