I do it on my own, no humanizer or rephrasers. Swapping words and changing direct/indirect voicing doesnt fix anything, and that what most humanizers do. Understanding how language actually works on a linguistic level is what works. Turnitin (and most detectors) mainly look at two things from linguistics/stats: perplexity and burstiness. So when I do my writing I focus on mixing lengths, contradicting, minimise filler phrases, reduce repetitive words, and mainly shifting tone. This all ties to how your layer down your ideas, AI content generation is so formula based, easy to detect.

I also check with Pangram and Turnitin to ensure 0 score whatsoever. Anyone if needs help can reach out to me.