Ordered new custom orthotics for my horrifically flat feet.

Ordered new custom orthotics for my horrifically flat feet. I've been waiting 7 weeks. They took moulds of my feet and then they were sent from uk to Australia where they are made. Hoping they make the difference for ankle tendonitis. I've been off past 2 months with this - physio says muscles are very weak. The exercises I was given hurt but I'm doing them - dread going back to work.