What helps me is to focus on finishing small projects or tasks. Whenever I want to learn a new technology or tool, I first come up with a tiny project I want to

What helps me is to focus on finishing small projects or tasks. Whenever I want to learn a new technology or tool, I first come up with a tiny project I want to accomplish with that. The project has to be small and have the appropriate level of difficulty. That way I continue to be productive, and actually using something (instead of just reading about it) makes it very soon obvious if I like something or not. Then it's just a matter of following whatever interests me.