Not sure I understand your question. The click track is always the same as the project tempo. But that is variable...
You can change the tempo in the transport panel for a quick easy, but you can also create a tempo track. You can manipulate or create tempo changes throughout a track or project.
Then it gets more involved whether you are in musical or time based mode as to how that tempo related to the audio or midi/time based tracks... Much to learn and I still do...
Great to hear you are getting along well man.