Motion before emotion. Thinking too hard about it makes doing something really hard. If a chore or something comes to your mind, do it asap. And if you can't do it immediately or have multiple things:

To-do lists for the day: write down what you want to do today make this list as small and short as possible. Besides, ticking off things makes happy chemicals.

I am therefore I do. For example: "I am a pianist therefore I practice the piano every day." or "I am a fit person therefore I work out regularily." This especially helps in the beginner phase where you're still thinking you're just a person who happened to do that thing.