If you have time, 65438+ 0-2 hours a day, which can be consistent in learning and help deepen the memory of limbs muscles. If you have no time, you can do it 3-5 times a week. The advantage of this is that it can give your limbs and muscles a time to rest and buffer, and it can also give your brain a time to digest.
The former is suitable for people who have time, are not afraid of water and have better understanding. If the time is not fixed, there is some resistance to water. Because of fear of water, understanding is slow. People in this situation are suitable for the latter.