I used to think that I had to be all in, or not at all. So I dieted extremely hard for 3 days, and then ate a whole cake and 3 cookies on the 4th day.
I would water my herb garden every day for 5 days, and then neglect them until they died and we moved so I was forced to clean up their mess.
I would read a self-help book and be SO ON BOARD for two weeks and then fall off completely and never return.
But one thing I am learning as a recovering quitter is grace. Grace for myself when I mess up. And the realization that I don’t have to be so extreme right away. 
I can eat a piece of cake here, or some m&m’s there. It doesn’t mean I failed, and I don’t have to throw in the towel. I can have one herb to care for instead of 8. I can start things small. Add one habit at a time. When I mess up, it can be just that- a mistake. It doesn’t have to lead to me quitting altogether. This is something I’m trying to work on.
When I Quit Quitting 