Get done things that matter to you. Focus and happiness become byproducts of the process.
Anyway, my point probably wasn't clear enough. I am suggesting to work on things that are intrinsically important rather than extrinsically important. By this I mean, don't prioritize what you think other people think you should do and prioritize what you feel you must do because it makes you you.
As Socrates would say "γνῶθι σεαυτόν".