You can switch your question about pretty much anything in the sport, and the answer would be no.
Now, does clean packing and proper gear maintenance reduce the chances of getting tension knots? Sure! Can you say that you'll never get them? Nope.
Just what I suspected..
But up front of my AFF course I "fear" more not being able to be stable in free fall and landing too hard. I tell myself to trust the gear and the ability to perform emergency procedure.
I am now going through "The Skydivers Manual" and ordered "Parachute and Its Pilot: The Ultimate Guide for the Ram-Air Aviator". I even put in some extra hours in the gym..
I believe learning as much as possible and listen to those with sound experience would make my jumping safer.
Thanks for the reply