You need to farm and keep the right items to sell to other players:
Bone Chips (5-10pp per stack) (Skellies)
HQ Bear Skins (20-25pp per skin) (Bears in East Commonlands)
Crushbone Belts (1 or 2pp per belt) (Orcs in Faydark/Crushbone)
Deathfist Belts (1 or 2pp per belt) (Orcs in East Commonands)
Was a monk in EC a few days back paying 30pp per DF Belt.
That could have set you up for 20 more levels worth of spells...
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Good Luck!