Games with infinite lives get boring fast. Stakes are what make you try. Life has stakes.

Consequence is what makes effort feel like anything at all. Remove the possibility of losing and the same actions become button presses, which is why a game you cannot fail gets put down within an hour. The fact that your choices actually land somewhere is not a threat hanging over you. It is the reason anything you do is capable of mattering.

Raise the stakes slightly on one thing you have been half doing. Tell somebody your deadline, enter the competition, agree to show your work to a person whose opinion you respect. A small amount of exposure sharpens everything around it.