I do planning at work every day and it helps me and my collaborators to achieve our goals. I can confirm that in the workplace it works very well if one knows how to do it. Unfortunately, life is different and as you say, it always changes and is unpredictable. Even in life, in my opinion, you should plan at least some things, but in the long term and with the awareness that what has been planned, for a good 65%, will have to be changed
I am glad to see your wonderful comment @stefano.massari, have a blessed day!
Probably, this post of mine is somewhat compressed within the framework of a particular day and is not fully expanded.
I would add to what I have already said that any planning, in my opinion, is subject to centrifugal force, like a machine that separates the heavy fraction from the light, like husking sunflower seeds or wheat.
Everything valuable to God remains, and everything light, what we have planned for ourselves, flies off to the side as unnecessary.
Yes, I do not argue that planning in business is an integral part of both trade and any production, but even high-quality equipment made from high-quality raw materials can give us defective products at the output, for example, due to some minor error that was impossible to take into account, and all plans go to ruin :) Therefore, I am inclined to lay all my planning at the feet of God, realizing that without His blessing, my plans are chaff.