I hate that this happened to you. I was in your exact shoes ~ 3 months ago so all I can tell is that time does heal but it is always there.
So I hope that your pending m/c will be low pain and ask your doc for some pain pills if needed. I chose to go through a natural miscarriage on my last m/c but I have also gone through a D & C for a past m/c and both have their pros and cons.
Plz give yourself time to heal.