Transmission Service on 2007-2012 Nissan Sentra 2.0 CVT (Nissan Struggle episode 1)

How to change filter and fluid on 2008 Nissan Sentra CVT transmission. Trying to help my sister and get her car back on the road. I started with a transmission service. After realizing that I got the wrong filter, I knew that this undertaking would turn into a shit show.