Show me information about left wrist in the golf swing

The beginning of your golfing life is the time that you will learn the quickest. If you have bad golfing habits today, it is likely that you acquired those habits when you first took up golf. OK, that might sound not so good, but there's still hope. You can turn your game around and learn to play golf properly, losing all the not so good habits forever.

When you miss that vital shot, it's probably your wrist action that's wrong. Maintain a flat left wrist vis a vis your left forearm's back side in addition to the non front part of hand on your left side, the club should not be swung back more that the shoulders can pivot.

Make sure that your understanding of the green is correct. If there is a hill on the green, expect the golf ball to roll away from it. Also, expect the ball to roll towards a small lake or other kind of watery place. You should not forget this simple thing, and you ought to use this information to your advantage whenever you can.