Infection and exposed cartilage in the nose after revision rhinoplasty -- will this heal on it's ow?

I'm really sorry that you had to endure this. I recommend you give it some time to heal first - what you see is not necessarily what you'll end up with. But from the pictures, you will likely require significant nasal reconstruction In a staged fashion.  This means be prepared for more than one...

 From the limited photographs presented, it appears that there is a hanging columella present which can be reduced. Reducing the columella will shorten the nose in the vertical axis. To prevent it from drooping  when smiling requires releasing of the depressor septi ligament. For more i...

Rhinoplasty would work well to address your hump, to a lesser extent width and bulbous tip correction. Your thick skin will have some limitations on the end result. To further balance your face you could also consider a chin implant as you are out of proportion with a 'weak chin'. This would...