If I turn my WiFi off and just use my mobile data, the go on Incognito, will my mom still be able to see what I look up.?

Update: Ok, so yall can answer my question and not tell me to just look at playboys, I am trying to look up stuff about my sexuality and trying to learn more about it, and I don't want my mom to know that I'm looking this stuff because she is a straight up homophobe.
Update 2: Also, my friend recommended that I should turn the hot spot on my phone on and have my computer use the hot spot as it's wifi so she can't check, because she claims that she can check what we look at based on what we use our wifi to look up.
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