for my birthday a few years ago i received a card from my grandmother, the front of the card read "this is your world. Shape it or someone else will." on the inside it said "go get em girl". Wise words and a kick up the bum from a wise and inspirational woman.
"Learn keyboard shortcuts, lots of keyboard shortcuts". (like the idea if your in the "drawing zone" having to swap between coloured pencils, it is easier to have them at your finger tips then inside a pencil case)
Don't buy really expensive and nice journals.
Process diaries are meant to be ruined, to be scribbled in and be there for jotting down spontaneous thoughts.
An expensive perfect journal (say hardback leather bound with gilded pages) is only intimidating. You feel the need to make everything perfect, and instead of truly letting your thoughts and ideas run wild, you'll end up meticulously plotting and writing neatly. The whole point of the design process is supposed to be free spirited, where you can rip out pages and stick things back in without worrying you'll "mess it up"