(Proverbs 16:9 KJV) A man's heart deviseth his way: but the LORD directeth his steps.
There is a famous quotation, "No battle plan survives contact with the enemy." I have heard it attributed to various people but it seems to go back to a Prussian commander, Moltke the Elder. He could have been paraphrasing this verse.
We have all been there. We plan and prepare. We study and organize. We do everything we can ahead of time and things immediately fall apart. Many times we can look back and see that the failure of our path was for the best. In reality, God had a better plan in mind.
God “directs” (3559) in many ways. We are not aware of most of them. This can be through open and closed doors, “coincidences”, the prodding of the Holy Spirit.
So? Don’t panic or despair if things don’t go “right” today. It could be God trying to patch up our mistakes.