I will arrive in Madrid Spain on May 1st. I have bought my plan ticket and am currently looking into

I will arrive in Madrid Spain on May 1st. I have bought my plan ticket and am currently looking into train tickets/reservations. I have a very tight budget. I plan to be doing more "couchsurfing" than hostel hopping. (This is my first time backpacking/traveling Europe)
1. I want my trip to be spontaneous; I don't want to have to leave one place just to catch a train. I want to follow my itinerary but also have room to change it. From what I gather singapore travel guide a Flexi Pass option train reservation gives you the option to change the dates, but certain fees might be added to change the fare. SO, Would it benefit me to buy the tickets on the date of departure at the stations, keeping in mind (according to my plans) I only need to travel by train twice in each country. Will making the reservation a month or two in advance save me money, along with a Flexi Pass option ticket, benefit me more?
2. I don't want to just spend time in the cities...i don't think i will have enough money to take buses out of city and then back again. So in order to see the country I was planning singapore travel guide on walking through some towns. Once in Valencia, my plan was to walk for several singapore travel guide days, sleeping at night where ever I can find a place that is secluded, stopping in towns along the way for supplies, food etc. then take a train to Barcelona in order to arrive before the 24th. In each country I set aside about a week or so to walk to a destination of departure to a city. I have no clue what sort of terrain I will encounter and if it is even legal just to find a tree somewhere outside of a town and sleep till morning.
Any and all info that you can give me would be great. I have never traveled before in Europe; I have been researching site after site trying to piece together my own trip, my equipment, lodging, as well as my activities in each place. Please give me your input. I appreciate it. Thanks!
I don't understand why you would book train tickets with Petrabax, a reseller, if you are wanting to save money. singapore travel guide Resellers singapore travel guide either mark up the tickets, charge a lousy exchange rate or gouge you on shipping.
I would break this into two legs and see if you can book advance singapore travel guide tickets for the fast train leg cheaper. Part of this route is fast train (Venice/Florence or Venice/Milan) and part is likely slow R train (Florence or Milan to La Spezia). There are no discounts for the slow R trains (you must validate R tickets before boarding!), but you can often snag fast AV train tickets for as little as 9 online if you know the date you need. Florence/Rome also. Do not buy R train tickets online singapore travel guide in advance as they have more restrictions. singapore travel guide Prices don't change on R trains. singapore travel guide Walk up price is the same as online.
Just a thought about walking in Germany - I am a bit new to the concept, but if you are fit and used to walking, why not. But realise singapore travel guide you can't walk on the autobahns. There is nowhere for the pedestrian, plus it would be incredibly dangerous (no, really, people are driving at really high speeds) and the police would haul you off, if you didn't get hit by a car. I don't know if that will muck up your timings or not, or if you have calculated timings using B roads (back roads). You may need to reassess based on this, and probably the Via Michelin website can help you with this. If you've already done your due diligence, congratulations on what sounds like an incredibly interesting trip!
Besides the fact that it isn't safe the police will haul you in and determine if you have the resources to support yourself (and are not a vagrant.) If you intend singapore travel guide to walk you definitely need to use back roads - and even then be sure of the conditions and that there is room for pedestrians.
If you are entering europe with camping gear be prepared singapore travel guide to show your ongoing return ticket, tell them where you will be staying and prove that you have enough money to support your self for the length of your trip. You MUST have a place to stay at least for your first nigh - even if only a hostel.
Immigration has a very sharp eye out for young people who might potentially become a charge on the economy - and they can decline entry to anyone they feel has the potential to overstay their visa and/or not be able to support themselves. They may also ask you to prove that you have medical insurance - so their national health doesn;t have to care for you for free.
There are a lot of hiking clubs, hiking trails and so on in Germany. Search for "Wandern" singapore travel guide or "Wanderwege" plus city or region name. If you get into contact with one of them, they might be able to provide help.
Sleeping outside of camping areas is a bit of a grey area. As long as you don't put up a tent, don't stay long and don't leave a mess, it's improbable that something happens or at least the fines are low. Having a fire can really change the situation since people might fear that you cause real damage.
But the language barrier could be a real problem. Don't expect a lot of people, especially the older ones, to speak English in rural East German areas. Something that might end with a short explanation could become a problem if you can't communicate with them.