I’m not sure how possible it is to share a desktop session with audio over hangouts/zoom etc, but I’m sure some of us could give you a basic intro. What timezone are you in?
As for equipment, you will likely need a keyboard / MIDI controller, a soundcard with mic input, some headphones (so you can monitor yourself and the music whilst recording vocals, without the mic picking up audio from speakers), optionally some speakers and of course a mic.
I’m in Finland - so I think one hour ahead of you. Feel free to PM me any questions and if/when you feel ready to be walked through the basics, maybe we can arrange a time to share my screen and talk through things.
What version of Cubase are you using?