Any suggestion to remove Light Head from track. I tried turning the fixture and no movement. The Track is almost coming off the ceilng and the Head is not moving. What is the trick???

I've run circuits before using fish tape, etc. When I've run these lines from my basement up into my open attic and then down into my second floor room I've always ended up needing to make a hole somewhere between the first & second floors to help aid in running the line. Despite finding a supposed "clear path" from the basement to the attic (two floors total) by running it alongside some stack I'm never able to simply pull the cable through. I can't really visualize the path well because my attic is a crawl space & trying to look down the path is difficult at best. When I send the fish tape through it never goes straight down because it has some bend in it & it always ends up curling somewhere despite my best efforts to straighten it. It works Ok enough for a one story run but not so for the two story runs. The reason I ask is that I'm trying to run an ethernet (Cat 6) cable and I'd like to avoid cutting a hole between the first & second floors to help guide the line properly. Are there any "tricks" that you pros use to help run these lines a two plus story distance? Using fish tape or otherwise? In my experience I've been less than impressed with fish tape.