What we're saying is maybe try pulling with naptha instead of toluene next time around.  It's less aggressive but more selective, so that what you are pulling will be almost all DMT, whereas now your peanut butter material likely contains a fair amount of other mystery alkaloids, along with non-active plant fats and oils.  You'll also get a much cleaner crystalline product if you freeze precipitate rather than evaporate on a hotplate, but I'm guessing that you could probably clean it considerably with 2-3 heptane re-x cycles.