Well first is first... How old are you? And you should probably avoid playing in the woods. Not really ideal.
What did the box say about the FPS and what brand is it exactly? Most feilds will allow up to 400fps when its outdoors, 350 when indoors, etc.
As for "n00b guides'
Its not really that though to click on the FAQ section and putting a bit of effort into searching yourself. This isn't a spoonfeeding service i'm afraid.