The world is strange. You have to learn by doing. If you still feel like a child with a drinking permit, this post is tailored for you. I'll help you adult.
I'm a sucker for a good set of organizational skills. Like a child, or a dog, I like routines and structure that work like compasses. Something that really helps me stay efficient even when I don't really feel like it - and especially when I don't know where to begin - is neatly going over my lists. These lists are all found in my trusted bullet journal.