What are the sentences describing "drowning rescue operation"

He instantly sank a few meters under the water, and he was very scared. He has never been in the water, let alone can't swim. The instinct of survival made him shut up and open his eyes to see a dark green that made him desperate.

He began to struggle with his hands and feet and the land, desperately going upstream. His hands grasped desperately upward, eager to grasp at straws. His feet on the water are as difficult as climbing stairs. He hopes that God can put a ladder to survive at his feet at this time and let him escape from this abyss.

He miraculously rushed out of the water, but before he could speak, he sank again. I saw the dark green of despair again. The glasses he was wearing fell off and slowly sank to the bottom of the water. But he has no strength to take care of it. His mouth is full of water, and his hand is pulling hard. Being weak, he soon exhausted most of his physical strength. The clothes on my body are as heavy as armor after absorbing water, and the shoes on my feet are as heavy as two stones. He wants to take these off, but now he doesn't even have the strength to hold his breath. He keeps pouring them into the river. He began to hate himself, why not force himself to learn to swim. Suddenly, his potential broke out and he tried to rush out of the water with his hands and feet, but he sank again at the sight of the water. Finally, he was completely dominated by fear and despair and stopped struggling. His hands reached out to both sides, his mouth was bubbling and he sank slowly.