You can try wearing a paddling palm. If it is not a problem of strength, it is mostly due to the feeling of water. Wearing a paddling palm can help you practice your water sense very well. You can start practicing with a smaller model, as long as it doesn’t make paddling particularly difficult for you. I'm a swimming coach. You can try this method. The power of swimming on water is quite different from that of some on land. Practicing blindly is counterproductive.