Cryptogram

[s4orce]

I have been trying to solve this cryptogram for days and I'm getting frustrated. Can anybody help me?

 

 

QCKJWCCXZCIBKKWBNJIKEILDTNSXTXOKEFOKTZLNACOOEBMJIRFASFASSFSSYHLTJVASYWKYYBFFWOVJQEIYOFELEVPSAFNBNJIBNOLDGFXYIOCDOJLXNGASSFSJYCWTTJILEZIHEFXYCNOPIZOYQFIPSFXYKJYFKIWBTZAKNWQVKBUPELCBFCOAWWSVDCSYGNCTZCSRFTTKQNQJATLVEBGBFCKGEILVNLLSXFXPQLFXTVOSJEEJALICNJ

 

I belive the first part says ITSNOTTHAT

[Royce]

QCKJWCCXZCIBKKWBNJIKEILDTNSXTXOKEFOKTZLNACOOEBMJIR FASFASSFSSYHLTJVASYWKYYBFFWOVJQEIYOFELEVPSAFNBNJIB NOLDGFXYIOCDOJLXNGASSFSJYCWTTJILEZIHEFXYCNOPIZOYQF IPSFXYKJYFKIWBTZAKNWQVKBUPELCBFCOAWWSVDCSYGNCTZCSR FTTKQNQJATLVEBGBFCKGEILVNLLSXFXPQLFXTVOSJEEJALICNJ

 

Based of that the first few words are ITSNOTTHAT

 

Q=i

C=t

K=s

J=n

W=o

x=h

z=a

bcdefghjklmpqrsuvwx

 

[line 1]

itsnotthat(IB)ss(BN)n(I)s(EILDTNS)h(T)h(O)s(EFO)s(T)a(LNA)t(OOEBM)n(IR)

 

I, B, or N has to be a vowel: e or u

 

[line 2]

(FASFASSFSSYHLT)n(VASY)hs(YYBFF)o(OV)no(EIYOFELEVPSAFNBN)n(IB)

 

There is no vowel candidate in the first half of line 2.

 

Your deduction is wrong.