Lol best give him some help.. Little harsh to keep clowning the fellow.. lol

See the thing is when you are standing correctly it will be come easier..
First off.. I guess your right handed? since your not good with your left..

If you are right handed this is how you should stand.. Left foot forward.. On the ball of your right foot.. And when moving you should step first with your left foot and move your right with it...
Hands at your chin .Practice maybe in front of a mirror just throwing strait shots..
It really is practice..People who can teach to box have theyr own little gimmicks and methods that are handy for you to remember and get used to it..But when it comes down to it..It'll be the practice that does you good.. I'll be back on this topic soon to post you a link to help you out..
Peace