Is somebody willing to walk me through an upgrade from v2 to v3?

I’m trying to do the upgrade from v2 to v3 myself and it’s simply taking me way too long. I’m reasonably savvy but feel like I’m missing some obvious knowledge that people savvier than I are assumed to have. Like, I see where it says to do the install from the command line, but I don’t know how to get to the command line.

Is there anybody available that I could hire to show me around the back end and help with this? I’m willing to pay an hourly rate or whatever makes sense. I’d love to have you help me get my instance up to date and show me a bit of what’s what on the backend in the process.

Thank!

Pm sent.
Joey