When you breathe in breaststroke, you should pay attention to that most of the exhalation is done underwater. When your mouth is out of the water, you can quickly spray the residual air out of your mouth in the direction of your nose, so that the water above your nose and mouth can be washed clean to prevent dirty water from being inhaled. Inhale slowly after exhaling, then slowly sink, and then do the next move. This is breathing. I'm sure that when you breaststroke, you only breathe after your head comes out of the water. It's time for beginners.
Also, when you kick, you usually kick the eight-legged leg. When kicking out, you can consciously fan the water with your feet. When you get it back, you can take it back inside and in front. From a mechanical point of view, you can understand how to produce a greater reaction. Your feet are clenched, but your hands are actually very simple. You can surface, and when you are in a state of not drowning, you will naturally learn other swimming.
These are my own explorations ... Hehe, they should be more practical.