I need advice.
I'm trying to take a vacation without any money, so I'm thinking about just going into the forest for a while.

I'm still a bit spoiled by city life and have never done something similar, so I'll be packing basic camping gear, and rely on some sort of civilization for drinking water, but catch my own food.

I need advice on locations in Sweden where you could set up a tent without bothering other people.
I'm thinking something like at the outskirts of a forest (easy to stay out of sight), with at most a few hours walking distance to some sort of civilization. Near a lake or some other water source for fishing would be great too. If I'm able to clean myself there, that's also a plus.

So.. any Swedes know of a location I can go to?
I live in Stockholm, and as I said I'm low on money so I can't afford to travel too far with SJ.
If I can go there all the way with SL (their busses go pretty far north) that's a plus, 'cause I ride with them for free.