The correction of the spiritual illness I suggest is learning Gemara and Musar. [Gemara refers to the two Talmuds.] I do not accept the idea that Gemara is a conspiracy against the Torah. It is a rigorous account of how to go about keeping the Torah.
The problem with the cult that the Gra signed the excommunication on is they take a schizoid personality obsessed with ritual and obsession with sex [love and hatred of such] and make them into their leader and idol.
(Hyper-graphia, hatred of new things.)