OK, let’s try some uplifting speaking today.
What do you need to communicate?
How can you do that in a kinder more encouraging way?
I’ve always found “practicing” helpful. The shower is a good place (because fewer people are likely to hear you and think you are one (or more) shy of a dozen eggs). Practice complimenting your spouse or saying something you usually say in a way that is more encouraging. Give your sentences a chance to sound more normal and natural before you turn them lose in the real world.