the dry leaves could contain up to 1% DMT, the spice you will get through this extraction will be a crude extract with a lot of impurities so it will hard to dose with, it's better to do a simple clean up on it also the DMT will be in salt form if you want it for smoking then you should convert it to freebase DMT
one of the ways to clean it is to dissolve the crude extract you get in a minimal amount white distilled vinegar, some impurities might not dissolve so you filter them out with a coffee filter, then base the DMT solution with lye or sodium carbonate and pull with naphtha then freeze precipitate...
if you don't have access naphtha or any other non polar solvent, you could after the filtering step put the solution in the dehydrator till dry then scrape the DMT, powder it and mix with an equal volume of sodium carbonate and some water to make a paste, then dry that paste scrape and powder, dissolve the powder with alcohol and filter it, then evap the alcohol and collect the DMT, this way you will have a cleaner product and in freebase form
good luck
"Is this the end of our adventure? Nothing has an end. We came in search of the secret of immortality, to be like gods, and here we are... mortals, more human than ever. If we have not obtained immortality, at least we have obtained reality. We began in a fairytale and we came to life! But is this life reality? We are images, dreams, photographs. We must not stay here! Prisoners! We shall break the illusion. This is Maya. Goodbye to the holy mountain. Real life awaits us." ~ Alejandro Jodorowsky