There's also a good example that I can think of in a book - that you should focus on the good instead of the bad and negative. There was an American send to Africa in the '90s and he was tasked with reducing the death rate of children, which was pretty high. There was a lot of misery going on at the time and he faced multiple issues, from not having clean water to children straight dying from hunger, and on top of that he had 29 days to do it, in addition to not having support from the local government that wished he failed.
What the person did was to focus on the positive - he found tribes in which the children's death rate was the lowest (still pretty high though) and observed what was happening. Then he just spread the practice to other tribes and thus reduced the death toll within 3 months, after that he got funding and expanded on this even further.
So focus on the positive in your case, I would not think that it's day 1, day 2, day X. Instead it's day N of your life. You have the power yourself to change this, not anyone else, you can't buy this, you can't cheat yourself out of it. You can just do it, and you will.
As of this writing I'm also on day 2