Only solve the problems at hand

I have been spending time lately to find problems, that I can solve. Big or small. Tech or non-tech. There are too many directions to pursue. Too many unknowns. Finding a problem and sticking to it is hard enough.

What do you do. Narrow the scope of search. Nobody said they have solved all the problems at hand. The problems you face, you know the edge cases better. Chances are you already have done a literature survey to find what solutions exist and how they are incomplete. And what you can fix.