Hi guys, when i first made dmt and tried it I had seen enough for a couple of months

Now, recently my intrest has peaked again so i decided to try & extract the jar of mimosa vinegar extract i had left. but after basing & pulling I cannot seem to get any dmt from it! the very few crystals that precipped went away when it heated up.
Anyone here had succes with extracting old mimosa tea? or is 8 months way too old (didn't fridge it, only kept it dark) and should i just throw it out and hope the remaining dmt in my mimosa hasn't degraded yet?