Fulfilment comes from within, not externally. Results driven fulfilment comes from the gradual achievement of small goals, slowly combining into larger goals. They can be as small, as simple as reading a book.
The best advice I was ever given was 'finish what you start'. Rather than skim articles in newspapers, I forced myself to read (awful) articles from the beginning to end. Eventually that morphed, and I now make choices on when to skim, what to leave behind - what's a sunk cost fallacy and what isn't. But the point was to break the pattern, to achieve small things, and build on them.
I take the same approach with my kids. Get a win, then get another win.