Mom diagnosed with Type 2

Hi everyone. My mom was recently diagnosed with diabetes, and it seems like everything has gone crazy. And Internet research says everything is bad for you, and there’s very little to do about any of it. So, I was hoping you guys could help with some questions I had:

1. Is there any way to improve circulation? She’ll get something out of the fridge, her fingers turn white or black, and they’re just not functional. She’s also cold all the time for the same reason.
2. Is dizziness common? Her numbers have gotten pretty good, but she nearly passes out every time she crosses a room. We don’t know if it’s a normal thing or a bad side effect.
3. How do people prick their fingers with the non-dominant hand? Her fingers hurt all the time, and the marks are visible for days. It would be easier if she could do both hands, but she can’t figure out how to do it with the non-dominant hand.

Hope that this is okay for this subreddit. I appreciate any help and answers you can give me.