I wonder will this program work for you. Go to this site, and enter [any, can be fake if you dont want spam] email address, and try eliminating 1 belief.
Go here and say did it work
I find this theory really interesting and efficient, so you wont be sorry if you try even if it takes 20 minutes or so!
EDIT:Just want to state, as I should in the OP, but i thought it is actually logical, that "it didnt work" should be only answered if you tried the whole program and not if you stopped after 5 minutes!!!! of course it wont work then!!! that doesnt count as TRYING