Hmm. Depends probably on do you leave the knives out, have paper/cardboard/plastic knives or real fighter knives with the costume!
An easier Halloween costume is Ghostface. No trousers and a shirt/jacket but a robe.
My friend drew the outline of the knife he uses in the movie in cardboard and I added many layers, getting a nice, thicker cardboard knife!
Comfort zone is easy. You don’t need to think as much and it may be a stress-free area.
Outside the comfort zone is where you can learn new things of yourself. What you like, dislike, think about the world and things inside it. It might be stressful and scary there.
Too far outside the comfort zone may result in burnout or mental problems.