My gardening seems cyclical. Some days or even years, I get a lot done and other times I just can't get started. I've never been the type to have a big plan, so when I moved here, I had to go to a nursery and pay to have a plan drawn up for part of the yard.
It sounds like your new yard being smaller than you are used to, has thrown you off. Maybe if you could tour some gardens in your area of similar size, that would spark some ideas. Are there any garden clubs that show their gardens?