Something to know about me. I am a 20 year old guy and could care less about being comfortable. I plan on eating one meal a day if I must. Just to be able to afford a good time. Say for example I can't afford to stay at a hostel every night whilst in europe. I have no problem sleeping in some randome park in France. That sounds exciting. I also definitely want to hitch hike quite a bit.
You really do not want to consider sleeping outside anywhere in Europe during winter, unless you'd like to die of hyperthermia!
It is a condition on entry to European country that you have enough funds to support yourself. If you are found sleeping rough by the authorities you will be deported immediately, at your own expense. So make sure you have enough money to cover the cost if a hostel bed.
You will have roughly 95