I really identify with your trying so many things & not feeling any better.
My strategy is to fight mercury along with the parasite cleansing. I am just now starting to get better...I think.
More time is needed to tell. I have a post about that here re "2nd week to -- ? Diatomaceous earth..." etc., above, in case you might find it helpful. It is not as long as it seems, because I keep repeating the protocol I'm using, daily.
As I mention there, the only thing that really got rid of Tapeworms for me was DE.