The easiest way for me to clear my mind and have a new outlook is going for a walk, taking a day off, getting out of my normal atmosphere. Luckily for me I've been able to do all of these lately and come back feeling inspired and ready.
Not everything is how I want it to be, but at least now I feel like it will work out.
(And I know I can always be happy with what I have.)
(This was at Mt. Tabor Park, one place I wouldn't mind living by.)