I really liked your suggestion and wanted to elaborate, or add to, it.
Being a painter I can say that in the past when I screwed up and felt I put a wrong color, I really wanted to delete it, and tried in different ways to take it back. Nowadays, I simply go on, using what it does there. I still try to correct it, but now using the fact that it is there as a force for movement, instead of a hindrance.
I would give an example of a person swimming in the river, which is what we do in life. One can try to swim against the current to go exactly where you want to go. Chances are, you won't succeed much. On the other hand, you can use the current as a force to help you, knowing just right how to use it. Now perhaps you can't go to precisely the place you wanted in the first place, but on the other hand, perhaps you can go to a much better place, if you can use well the power of the stream. A place you couldn't have gotten on your own.
I'm not saying "if life gives you lemons make lemonade," I'm saying try to use the lemons to get what you want, which might not be lemonade, but still, perhaps you can sell the lemons and buy oranges, or something like that. That is, instead of fighting constantly against the stream, listen to it, and use it, though not necessarily go with it.
I'm also definitely not saying to go with the flow, don't rock the boat, or whatever! Definitely sometimes you need to swim against the stream, only also at this moment, especially at this moment, you should listen to the stream and move with it, even if in a different direction.
Like with paint on a canvas, it is there and there is nothing you can do about it, but move on. To use these things as momentum and not as a hindrance in life is very important, I agree.