A good tip to enforce positive affirmations: Make them your pass phrase!
A pass phrase is a way to remember your password.

For example, the affirmation "God grant me the serenity to accept the things I cannot change" taking the first letter of each word in the phrase becomes this password: GgMtS2atTIcc!

Capitalize all nouns (like in German language).
Find a way for something to be a number. 2=to, too, two
gr8=great etc.

You can post your often changing affirmations, written out as a full phrase over your desk, but only you will know it references your password!

Hang in there, everybody!