There's no rhyme or reason in setting deadlines yourself because breaching them is always easier, so get people you trust to set them for you. Doing so can increase your productivity.
What does time mean to you? Depending on who you ask, you'll get one of the following answers:
Time is money.
Time is love.
Time is joy.
Time is work.
Time is a thing of the past.
You can't rely on your memory as much as you think, because it will mislead you even if you believe it never will. Your life has turned out differently than you remember now. Does that surprise you?
I used to think that positive affirmations were just utter piffle, but it wasn't just me, I guess. Most of my friends frowned on them as well. They remind me of the ridiculous personal development lecture tapes from the 1980s and 1990s.