"A closed mouth doesn't get fed." i.e. if you don't ask, you don't get. Said to me by an ex when too scared to ask for something I needed from someone with power who could give it to me. Gave me a lot of confidence actually, in just asking for what I need, rather than waiting for it to be given.
Thanks to Mumsnet: "When a man shows you who he is, believe him." Has stopped me staying with sooo many guys now, when I see who they are after a few weeks or months. Whereas before, I would try and make it work, rather than see it being down to them and their poor attitude/communication etc.
I can't remember where I first saw this, but 'Use what you have, do what you can, start where you are." It's a rewrite of what Theodore Roesevelt said, but I like it in this way better. It reminds me to just start on a project or a dream, even if I think I don't have the skills or resources to do so. Then I've found, sometimes The Universe gives you that extra thing you were missing, if you just begin and keep going.
I'm still learning about my procrastination though, so this thread should help!