I tend to do the opposite, I dwell on any blunders I have done in the past, which, probably, causes me to sometimes lose the blessings of today.
However, I have studied the Bible enough to know that, Paul suggests
FORGETTING those things which are behind...in other words MOVE FORWARD.
I often think of what the newspaper reads when daylight savings occurs every six months: FALL BACK, SPRING FORWARD. Fall back and do not worry about tomorrow, and spring forward forgetting what has happened in the past.
I used to always worry about tomorrow...especially if I had a commitment, party, or a circumstance that was eating away at me.
Examples are: when I was in a public speaking club and I had to give a speech I would practice and stew about it...on and on until it was over with.
Or...when facing surgery, I would agonize in fear prior to the date. (including any family members facing surgery). Looking back on all this, God ALWAYS came through He ALWAYS worked it out.
My sister quoted Florence Scoville Shinn recently, she said: "Let God juggle the situation...if you try to juggle the situation, you will drop all the balls."
If I can get that imbedded into my heart and mind, the result cannot be anything less than peace.
I also love the quotes given you by mothersofnations. These are quotes from God's word, and God is never wrong.
Thank you for a great question. Sparklea :)