More info
Time for full disclosure, Edena. You've listed your situation, environment, and supplies, but have given us zero help with these vital bits of info:
1. WHAT IS YOUR QUEST? EXACTLY?
2. What are your character's stats, skills, languages, and feats?
3. What animal did you pick as your Familiar?
You seem like a reasonably intelligent guy. So read. Like another guy said, you should go to the library and get "
My Side of the Mountain ". You can finish it in an afternoon. While you're at the library (or at a bookstore), pick up the
Worst Case Scenario Survival Handbook. It has plain language, easy to understand notes on a few survival techniques (and, more importantly, it conveys an overall glimpse of the mindset required for survival).
If you're going to go through with this, get serious. Read the
SAS Survival Handbook or the
U.S. Army Survival Manual. These two books contain not only information on how to find food and shelter in any season and climate, but also how to avoid active search patrols and other intelligent, hostile foes. These books are perfectly applicable to your situation.
And good grief, GO TO A PARK AND LOOK AT SOME TREES. If you're in Southeast Michigan, go to Kensington Park or even Maybury Park in Northville. Just by walking around, you'll see an astonishing number of places that would make great shelter with minimal work.
Now, please help us help you and give us the details on your character and situation.
-Z
PS: if your character is in a place so remote that there's zero chance of friendly parties/merchants, and you are far (you said at least 40 miles) from roads, then chances are you're far from hostile, intelligent monsters. You're in the deep woods. Your primary concern should be magical Beast and exposure. And with your spells (especially Prestidigition, which you can use to Warm your clothes during Winter), you'll do okay.
PSS: make candles from congealed animal fat. A single candle, held close to the breast under your cloak, will keep you warm enough to survive--even at freezing temperatures. Remember to breathe the warm air above the candle.
PSSS: An intelligent monster who encounters this character won't instantly know he is a wizard. This guy has a sword and a bow; he could be any class in the world. And any level. If you encounter a sizable hostile band, stand tall and fierce and use prestidigitation to cause your sword to burst into ethereal flames. Point the sword at them. Say that the glade has no value. Then say that it is under your protection, and you will allow them to leave in peace.