Am I the only one who can't smash badminton?

Hello, this is Coach Jinhwan.
Today is how to get good at smashing.
My own smashing know-how in this video
I've put it all together, so please watch it until the end.
00:00~00:15 Preview
00:15~:00:24 What we will learn today
00:24~00:43 Description of steps
00:43~01:13 6 beat step preview
01:13~01:45 5 beat step preview
01:45~02:17 Change round idea and 5-beat step method
02:17 to 03:13 Description of various preparation positions
03:13~04:13 Explanation of right and left RBIs
04:13~05:10 Description of swing
05:10~05:40 Forehand 6 beat smashing ball
05:40~05:59 Forehand 5 beat smashing ball
05:59~06:57 Explain the length of the forehand 6,5 beat swing
06:57~08:13 How to select steps according to forehand situation
08:13~08:46 Round 6 beat smashing ball
08:46~09:16 Round 5 beat smashing ball
09:16~09:43 Round foot X 5 beat smashing ball
09:43~10:48 How to select steps according to the round situation
10:48~12:17 How to set round shoulder turning radius
12:17~13:49 How to empower yourself when doing smashes
13:49~15:09 Swing method to prepare quickly after smash
15:09~16:29 Coach Jinhwan’s method of setting smash timing with steps
16:29~18:32 How to get timing for Coach Jinhwan's Sergeant Smash
18:32~21:21 How to lose strength during smash
21:21~22:53 Reinforcing exercise for smash timing
22:53~23:32 Closing greetings
23:32~3:48 outro
※ Indiscreet profanity or criticism is without notice
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