Am I out of luck or.....?

In the past several days, I spun 300 xmas crates, 100 m37 stakeout crates, 140 RPK-gold crates, I won nothing ><. Then tried my luck with the GP crates 200 thompson crates, 100 DE-C, 100 Aug-C, 100 anaconda adv and I won absolutely nothing.
Took me 219 crates to get m4 patriot
My friends told me that every time u win a per gun, z8 saves ur IP and u have less and less chance to win gun next time, wonder if it is true? Or z8 just hates me? What do u think about my situation?
For those who have the same pain, feel free to share ur sadness about BM like mine

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