I can't find any nether fortresses?! - Survival Mode - Minecraft

I'm in 1.8 and I just made a nether portal. Unfortunately I can't find any nether fortresses! Is there a way to reset nether?! Or any other way to fix this?!

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Both occurrences just freaking happened TODAY (while I haven't even reached the Nether Fortress in my main world on switch…which, tbf, is on hard mode) Edit: New (but expected) rarity. Found after

What should I do for the nether? I can't find inspiration. Should I also add the Deep Dark? : r/Minecraft

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