Unfortunately I don't know of a solution. The screen is not replaceable like in other Honda models like the CR-V. You have to replace the entire head unit which is very expensive. Some types of hand lotions or sanitizer can easily damage the screen. That is what most of the damage on yours is probably from.
I have had a screen protector on mine since the day I bought my Clarity. You can buy them on Amazon. If you end up finding a replacement screen or getting yours repaired I would highly recommend getting a screen protector. Installing a screen protector now might make it look better than it does.