I just graduated from a med school in Russia

Hello Doctors, i just graduated from a med school in Russia, my knowledge is not that great, but i have started studying for plab 1. I have bought the samson 2017 lecture notes and 1700 questions by Dr Khalid saifullah… i have started doing the subject wise notes and then i shall move onto the 1700 questions and then solve the subject wise mocks by samson and swamys and at the end il do the recalls and go through some important notes and maybe plabable. Do you think these notes are enough to pass plab 1? considering my basics are not very good and I am planning to do plab 1 in march 2019 do you think I can finish studying for it if i study for 8 hours everyday
and the next question i want to ask is if plab 1 has changed because recently i have seen many posts about how students couldn’t find any repeated questions and it was tougher than the usual exam.
Thank You … i hope you guys can answer my question since i have no clue about this exam