Some would say that I was fin dependent -- but I never saw regular fin use as problem. I have always worn fins for kicking drills, and never plan to give them up. I can skate across the pool without them, but I get more from the drills with fins on kicking gently.
I wore fins for the better part of 2 years when I started TI freestyle swimming as a 40-something adult. When I started, I needed them to power my stroke. I stopped wearing them when I had developed enough core muscle strength to power my stroke without fins.
Fins are a great tool -- don't avoid them for fear of creating dependency. If you are frustated and struggling, try fins -- keep using them until you have grown beyond them.