We never truly have a clean slate. I think that the assumption that we do affects our ability to plan and set goals negatively.
While every day is a new day and every year is a new year, the starting conditions for each are set by the days and years before. There’s no “base level” that gets returned to.
So use that to your advantage! Don’t try to build an empire on an empty plain, because you don’t have an empty plain. You have the lasting monuments and crumbling ruins of the empires of yesterday and yesteryear.
Knowing that, pick an area and improve it. Each day, week, month, year. Take one aspect and say “this thing will be better.” Keep going. Sisyphus without the boulder. There’s no top of the mountain, but there is always up.