Very first notarization jitters!

I got a text from Live Notaries LLC to do a notarization for POA and change of beneficiary in Massachusetts. This will be my first time notarizing anything and I’m nervous! Any tips on these forms? I know MA doesn’t have preference over stamp/embosser, which would you use for these types? I’ve been looking at example ones online to get an idea of what I’ll be looking at so I don’t feel dumb when I get there lol and lucky me it is a block from my home, so that eliminates some stress of timing and such. I suppose I’m nervous of missing something or messing up.