If can not swim, can also go snorkeling?

I can't swim. Most of all, I've fallen in the water before,so I'm afraid of water. Then I learned to learn for three days. Here are some of my own experiences.

First of all, make sure that the mirror and the breathing tube are properly worn and can not be immediately flooded. Don't wear the mirror too tight. Loosen it. It won't go in water. Don't clip your hair. The breathing tube is tight. Try to breathe with your mouth at this time. Don't breathe with your nose. Your mouth should be uniform. Don't go too fast, or there will be psychological pressure.
Secondly, wear a life buoy with strong buoyancy. Strongly recommend hiring a life jacket on the island, rent a lot better than Taobao, the buoyancy is strong and not afraid of looking over. We were using the cross is a life jacket in the online rental, don't mention it, it was not afraid of a face.
Again, recommended earplugs, because you are a. The feeling of oppression under water can not be understood by the students who can swim. The nose clip is not needed and it is not tight enough. If the mirror leaks, squeeze your nose tightly with your hands.
Next, practice in a relatively calm lagoon with sand under water, so that you can stand up immediately to avoid stepping on the coral. Don't practice in waves deep water. It doesn't work. It just adds to your fear of water.
Make 4 tries, step by step:
1. Try to bury your head in the water, practice breathing in the water tube, and look through the mirror at the bottom of the water.
2. Try to float on the water, legs dangling, do not touch the bottom. Rest assured that you won't sink in a life jacket. You dare not do it because you have fear of water. Overcome this fear and boldly float on the water, and you will find it impossible to sink.
3. Try respectively with his hands and one hand through the water, proper kick. With your hands poking through the water, you'll find yourself moving slowly. With one hand poking through the water, you'll find yourself turning. Ha ha, it feels so funny. If the kick should be appropriate, because I discovered that I can't control.
4. Try to bury your head in the water, the body center of gravity down, you can stand up. If you want to float, you must dive first. This is the conclusion we have drawn.