I think you must work more on your jab. You have no weight behind it and i think that this makes you anxios and you try every time to land left hand. What Plius they hit you over your right hand. Keep it alitle bit higher and to your right to be able to parry his jab.
And when you goes back you are running and your chin goes up. This way you are going to hit the ropes every time and if your oponent knows what to do he will hit you every time on the chin plus you can't punch from there. As you are going back take your head with your back leg and don't streighten yourself. Load your back hand.
Am i mistaken or your weight is more on the front leg? If this is the situation it explains the jab, the running back with chin up and distance problems.