>>1351802Hey OP, I've done a similar adventure to what you want to do. I walked and hitchhiked from Phoenix to Denver, then rode a bicycle from Denver to New York City.
First things first, get used to walking. Three months prior to your departure date, walk at least an hour per day during your normal days, then every weekend go out and spend an entire day hiking 6-8 hours. If you don't do this, you will quickly get tendon injuries from sudden overuse.
Secondly, save up a lot of money. You should start saving 6 months before you leave, and you'll want at least a couple thousand Euros. Not everywhere you arrive at the end of the day will have a place to pitch a tent, and many times you're going to want nothing more than a bed and a hot shower. Plus, you will quickly tire of travel-food and will want something good to eat. Also also, there is a good chance you will need new equipment or need to replace broken items, so you need to have funds for that.
>Food would be mostly charity, leftovers, trades and wild edibles. I'm prepared for some major hunger.No you're not. Nobody is going to give you charity regularly, you're going to be ostracized by being a bum picking food out of the dumpster, and wild edibles are not going to be found in the places you're going to be walking through. Trust me, I've done this.
>I'll be going through nature for as much as barbed wires allow me.Again, no you're not. All that land is owned by somebody, and you're going to be treated like the criminal you are if and when someone catches you willfully trespassing on their land. You can't be a nomad if you're in jail facing a court date and a hefty fine.
Thirdly, you need a goal destination, someplace you're working towards. If you're just walking around Europe, you're just an aimless bum with no direction in your life, and you will quickly begin to feel lost and confused. You need an end-point to gauge your success in life.