How do i setup telegraf, influxdb, and grafana?

Hello everyone,
I have searched a lot of different articles and vids on this topic of importing data from PFsense, into Influxdb, and to Grafana. I need help getting things setup.

I have PF sense & NTopng setup but it isnt as granular as i'd like so I wanted to setup something to make it more granular using grafana (specifically every device on my network and how much data it pulls per day, w/in given time frames, etc.) I really like the graphics of ntopng but its still confusing a bit for me in general. I need it to be more simple and specific which is why i wanted to try to configure something in Grafana.

I have pf sense setup to do remote logging as well and I have Telegraf installed.
My impression is that remote logging, telegraf, and ntop ng, all gather the same info just different ways to gather the info.

I have influxdb and grafana...