[Noob Question]How to track pages visited by different visit links?

I have visitors coming from several different links to my site (to different pages). Can I for every individual link track on which link has visitor clicked after?

And there is actually one external link in between, so can I somehow still track external link click as well and the last click (click back again to different page on my site) and for it to still be linked to my “individual link” (the link visitor visited site with)

So the tracking should look something like this: Individual link 1 (or 2,3 etc.)> Page link 1> External link> Page link 2

Would appreciate if you could link any video tutorial how to set this up.