I for one am not going to tell you WHAT TO TAKE, and neither will most people here unless you ask them to.
It's not like that. What someone takes is very much a synergy of self-knowledge, skill levels, gear, physical abilities, and expected challenge level of your environment. On the other hand there are several first hand accounts of guys on this forum who used a multitool or a first aid kit to creatively to assist another member of their group who was, to say the least, less than sensibly prepared.
Along the same lines, every so often around this forum, someone posts a question like, "What if you could only take five things with you into an unknown survival situation?" Old timer's groan, but truth be told, people love to chime in on these kind of threads. A typical answer would be, "knife, metal pot, fire source, canteen, sleeping bag." Alternative answers vary by an item or two, say substituting cordage, a tarp, a first aid kit, a compass, .22 rifle, a bible, a book of edible vegies, etc. for one or two of the previous five. Rarely if ever do any two lists exactly match, if you get my point...
Another random thought. The Native Americans are credited with inventing the concept of the possibles bag, which has more or less morphed into the modern bug out bag (BOB). Point being, even highly skilled woodsmen rarely went empty-handed into the wild places. Oetzi the Iceman was discovered with a little survival kit hidden in his belt which consisted of some flint blades, some tinder fungus, and a bone awl IIRC, thus I believe epitomizing the unoffical bushcraft motto, "The more you know, the less you need to carry."
I personally think the Brits have a very sensible take on PSK's where the whole kit is based on mainly just sitting down, making a little fire, and having a cup of tea/coffee/cocoa. The whole idea is that the process of making a cup of tea involves many survival skills culminating in a moment of calm reflection, so my advice would be to make sensible preparations a way of life, as opposed to a dramatic crash program. Take an approach of moderate change and ongoing self-education. Use some of your wandering time to doing things like practicing identifying useful plants, making wooden spoons, setting traps, creating cordage, and doing other bushcrafty things around your home and backyard as well as during your woodwalks to build up and diversify your skills.
One final note. YouTube.com has a bunch of great videos on everything from fire making, gear and knife reviews, food harvesting, and so forth, some of which have been contributed by active members of this forum. Hopefully you'll find some of this helpful.