work your jab to the space in front of the head. work your jab to the space in front of the head and repeat repeat repeat. when you work your jab to the space in front of the head it won't pass through your opponents slip space and get countered and thats why when you are working your jab to the space in front of the head your opponent is going to start coming to you to try to force your jab to pass through into slip space to counter it. this is what you want. use the ring to maintain a constant connection to the space in front of the head and continue working it with your jab.
start to introduce a hard jab to the head by pushing off of your right foot and stepping in to get your jab to come through the space in front of the head that you are working and hit the head instead. use your legs, hips, chest, and shoulder to start to feint this movement. continue working your jab to the space in front of the head and mixing in your hard jab and feint.
when you are at the gym and you are shadowboxing get in front of the mirror and work your jab, your hard jab, and your feint in front of it. your goal here is to try to synchronize each movement to have the same appearance. the amount of force that you are pushing off of from your right foot determines how long or how short your jab is going to go meaning that you can change the amount of force you are pushing off of from your right foot to lie to your opponent about how long your jab is. when you can work your jab like this you can start to make a guy get very tentative because he has to guess every time you work your jab to the space in front of the head whether each jab is just going to go to that space or come through it and hit the head.