I'd advise a q10 Sling and 20 Marksmanship just so you don't go insane from boredom. You should know the trick to hunting in a boat, chasing boars that run, trapping bears so they don't run, and avoiding deer until you have an idea of what you're doing and a bow.
If something is moving when you use a melee attack, you automatically hit for 100% damage so if a boar runs away after you shoot it, move to run speed and punch it to death. Faster than trying to trap it and sling it to death. If there's a swamp nearby trap it anyway because it'll outrun you in a swamp.
Trap bears and foxes with signposts so they can't run since they run faster than you and are annoying to catch.
Deer self heal so avoid them.
Aurochsen and Mouflon always give q10 meat and skin, don't need to be trapped, and never run.
For crafting better stuff you just need a better skinning tool (Sword or Stone/Axe) and high survival. To make good string just kill a bear, skin it, dry it, and turn it into leather straps. You'll get 8 leather straps per hide and they'll be the same quality as the skin. Leather straps = String. For leather you'll need decent carpentry, good bark, and good water, and good wood in addition to high survival and skinning tools.
Animal type and level will determine the maximum quality of the animals skin. Check the wiki for that information. I remember someone mucking up the data and correcting it awhile ago so it should be alright now.
Leather quality = (3*qHide + qBark + qWater + qTub)/6.
http://ringofbrodgar.com/wiki/Bearhttp://ringofbrodgar.com/wiki/Boarhttp://ringofbrodgar.com/wiki/Deerhttp://ringofbrodgar.com/wiki/Fox