@bunnyonvt Depending on your graphic card, you may need to fiddle with settings in the control panel for the particular card. Did they pre-install drivers too? It sounds like a similar problem I had when I upgraded my card
@bunnyonvt You shouldn't be embarrassed. I'm not sure how you can stop the shaking. But, I think it may help to remember that people are thinking about your behavior less than you are. There are some good suggestions in the thread if you haven't already seen them.
@bunnyonvt I think the best thing you can do is practice with real people. It's ok if you stumble while you get used to it again. Maybe your mum can tell you what is weird specifically?