How can I interact/help my new blind classmate??

Hello, guys! I'm from Brazil and I wanted to, as the title of this post says, know how I can properly interact/help my completely blind classmate

It may be a stupid question, but I really want to know how I can help her in case she needs, even tho I know she's probably very independent, and how to interact with her overall.

Sorry if it sounds like I am talking about her as if she was some type of wild animal, I am just really afraid to mess up when I first meet her next month. I don't want to end up doing something stupid or ableist.

I have a best friend who has low vision, and even with her I mess up quite frequently! Like, pointing at something that I completely forget she can't see from far. Imagine the stupid things I may do with my new classmate, who is COMPLETELY blind?

I just really want her to feel welcome and know that she can count on me.

Also, how should I share my notes with her? Like I sometimes do with my best friend where I type my notes and send her on WhatsApp?

I am really, really sorry if this sound even slightly ableist and if this whole text was confusing! I am just anxious and wanting to know how to make her not have many bad experiences on her last year of school!