Great job on number 1!
Reduce a lot of clutter from the home and sell it like literally sell it.
This is a good plan. I don't know about there, but here are a few second-hand sites for selling unwanted things. It is a good way to declutter and perhaps get a little bit more to invest.
What do you mean by number 4?
By the looks of things, I reckon being consistent with these will not only see changes for this year, but build for the years to come.