First, you have admitted to criminal conduct on the internet, by concealing funds in order to get food stamps, so you should now look for a criminal attorney.
Secondly, you aunt in theory holds the money in trust for you, but you have no leverage to get it back. If you sue, you are admitting in court documents, that you have committed fraud.
This comment does not create an attorney-client relationship. The law and its application by the courts is constantly evolving and changing. This discussion is not to be taken as a definitive guide, and should not be relied upon to determine all fact situations. Each set of facts must be examined separately with the current case and statutory law analyzed and applied accordingly.