google adwords screengrab cropped just to keyword area 700

I have some questions:1) I keep rendiag to chose keywords with high search volume and low competition. Why??? that competition is not how many pages are outthere taking about the same thing, but advertizers that comeete for that word. Wouldn’t it be better to point out one with high advertizer competition? I don’t get it.2) Do I have to make the title of my condition Work from home California or can I make it something more logical like work from home in California