As caregiver to disabled vet for 9 years (recognized and compensated for 2 years), how and for what do I claim (gas? Food? Rent? Etc?)?

I've been full time Caregiver for 10 years, but started getting recognized and paid by VA through a company 2 years ago. I take care of all financial, attend all medical, have full rights to being his PofA, and the list goes on.