Dont put any power on your jab, the jab is the weakest punch
Dont lift your elbow, use a mirrow and jab
Land a vertical fist, palm faces side
Dont throw one jab throw 2's and 3's
Keep your hands up, throw punches from shoulder height

Learn to use the cap lock, IF YOU TYPE LIKE THIS YOU ARE SHOUTING AND PEOPLE THINK YOU ARE EITHER NEWB, NINE OR A WANKER