What you want to ask is whether the phrase "water to desperation is a landscape, and people to desperation are reborn" can be used as a personalized signature, yes.

The phrase "When water reaches a desperate situation, it is a landscape, and when people reach a desperate situation, it is a rebirth" means that when water reaches a cliff, it will become a waterfall and form a beautiful landscape. When people reach a desperate situation, they will inspire unlimited potential, release incredible energy, and finally overcome suffering and be reborn. This can be used as a signature to motivate yourself, and also shows the determination to make progress.