I learned to swim last year. I am 11 years old. I always go swimming even when I dive.
Very simple, the use of water diving lung diving experience, slow dive, keep hold of the nose, every metre of force from the ear drum once gas, do underwater ear pressure balance
Underwater exhale close your mouth tight, then a small part from the nostril exhaled gas, the rest of the gas with the mouth full exhaled in the next breath before, at the same time the edge of the water mouth blown open, for subsequent inspiration.
You can try to exhale slowly approach the water, swimming is actually general with puffed slow shout way.
