Will filing down my central incisors correct the difference in length between my upper right and central incisor?

You have a narrow maxilla and mandible which reshaping the teeth will not address. You can reshape lower teeth and do cosmetic bonding on the upper teeth.

It appears you have a traumatic occlusion. dou you get headaches or migraines? Jaw clicking?

You seem to be a perfect candidate for a DNA Appliance and Epigenetic Orthopedics. Maxillary and mandibular expansion would ideally be done before cosmetics but if there is a rush you could do a quck reshping/ bonding for a quick improvement.