Isn’t this question missing the object? Like, thank whom, or thank for what. Well, you can complete it as you like. The important thing is to say “thanks”. Show gratitude. There is always something to be grateful for. For the simple fact that we woke up again, or that the sun is shining, and the rain is feeding nature to flourish.
Thanks for the person who held the door open; and thanks for my patience with the driver who cut lanes.
Far too often we are self-focused on the things that bother us. We think that we alone are carrying the weight of the whole world on our shoulders. And we seek proof at every moment, until we are unable seeing the positive things anymore.
Yet, it is easy to change. Say “thanks”, quietly to yourself or aloud to a stranger. Mean it, repeat it, and enjoy how your mind will start to focus on the good. And the smaller, or larger, unpleasantries that will still occur? Say “thanks” for your chance to grow by just leaving it behind.