"Smile Line"

This isn't easy for me, but I'm desperate. By no fault of my own, my top front six teeth have been destroyed due to night time grinding. I spent $2000 to get a proper appliance to help save my teeth...I fractured the appliance more than once because I grind so hard. It is barely hanging on with super glue. But so much damage had already been done. My smile was passable for a long time due to my awesome dentist. No one knew that I had more filling than tooth in many teeth. Now there is not enough tooth to get by and I finally need the inevitable - 6 root canals, two posts, and crowns. I'd already had one done, so that put me down to 5. They fixed the one in front that was falling apart, which cost my income tax return and stimulus check - $1900. So I have 4 left, $5,000 worth of work. 
I have looked into dental schools and they are only doing emergencies due to COVID-19. I looked into Donated Dental Services and they are only servicing certain counties due to the heavy load, but not my county. I have called other dentists to find out what they would charge and it was equal to or more than what my original dentist quoted. 
At some point, in the very near future, my teeth are going to crack and break off at about the gum line exposing live nerves, in my "smile line". My second front is throbbing so it needs to be done soon.
I can imagine everyone knows how they would feel without their front teeth. I won't be able to do my current job, because it is very important that I work with the public, do dog training classes, etc. 
I am very sad that I did nothing to cause this and I am in this situation.  No person should have to be in this predicament. I should be able to go somewhere, make an appointment and get it taken care of without distress. If I can get a little, I can use what I was approved for on Care Credit ($3000). If I get this done, I will be able to continue to serve the public, teaching, matching pet adoptions, and participate in fundraising events.
In the xrays the white is filling and the darker shading is decay that creeped in underneath fillings. All I can say, any thing will help. Thank you.