Poor hammy
. Hope her teeth are ok. It must be a nightmare to trim them. Most vets struggle with guinea pigs teeth where I live. I have to drive to Northampton to get my dental pig's teeth sorted.
I would try and get an appointment sometime this week with your regular vet. Maybe when she's settled in a bit more and is a bit tamer
.
You're doing everything I can think to suggest already. If she struggles with her mix, you could get some Science Selective biscuits and soften those.
Before I post, I must say she is a beautiful hamster