It seems to be a common desire around here. See the akrasia tactics thread. I started reading Mini Habits after seeing it recommended there. The technique looks promising for your problem.
I finished the book. It's not that long. I'll try to summarize the thesis.
Your capacity to work is based on three forces: motivation, willpower, and habit. Motivation is too unreliable: sometimes you have it, sometimes you don't. Habits are those behaviors that are easier to do than to not do; habits are the most reliable. But they have a chicken and egg problem. You can't use a habit you don't have. Willpower is the most useful, but you have a very limited supply of it; when willpower is overtaxed you can't use it until it recharges enough.
The mistake of ...
As an experiment, here's a thread for people to post about things they care about. Specifically, for things that are possible to contribute to, in some way, and preferably, to invite others to join.
Mine is buying and donating highschool textbooks to schools in the 'grey zone' of Ukraine (where the war kinda isn't fought, but few people would be surprised if it started.) I don't deliver them myself, though.
What's yours?