Yes, absolutely - you can recover the DMT with some washes of diluted distilled vinegar, or another pure acidic solution, like citric or fumaric. You'll then have a solution of the corresponding DMT salt. You can either evaporate off the water to collect a solid mass of salt, or add more lye solution and pull again with a more suitable solvent.
Evaporation is best with a volatile acid like acetic (found in vinegar), since any excess acid does eventually evaporate. Solid acids like fumaric and citric will remain present in the crystallised residue when present in excess.
There's another class of options known as
FASA/
FASI that I could explain if you have access to the appropriate materials (fumaric acid and either acetone or isopropanol).
What other solvents and acids can you get hold of? And how do you plan to use your product once you've isolated it? The answers to these two questions will guide the best course of action from where you currently are.