Survival kits come in lots of shapes and sizes. I recently made an altoids tin survival kit for a buddy of mine. I think I included snare wire, whistle, compass, needles, fishing stuff, gum, unlubricated latex condom for water, chocolate, buillion, led flashlight, container acts as a signal mirror, box cutter blade and i wrapped it in 550 paracord as that is useful for building shelter.
It's hard to recommend a survival kit, because there are so many possibilities. I used to go out in the woods in Michigan after or during a blizzard and use survival supplies to build a shelter and a fire and then sleep the night in it. That way I would get familiar with my gear and have a real idea of how hard it is to find wood and get fire started. Anyway, if you go out and do live tests it will help you evaluate your PSK and also build confidence so you don't panic if you ever have to fall back on a minimal survival kit.
I keep a little altoids-size PSK on a web belt with two canteens of water in my truck, but I carry a more elaborate survival kit in my hunting packs. My main concern in a survival situation is getting rescued so I'm big on fire, whistle and mirror. As far as shelter goes, I can dig into snow and pile brush on top and don't need any tools for that. Water is crucial, so make sure you think about that a lot. Hopefully you'll get rescued within 48 hours. Chance favors the prepared so keep doing what you're doing and you will make a fine mountain man.