You would die. There are many, many examples of explorers from “advanced” civilizations getting shipwrecked or stranded in an area where primitive hunter-gatherers live. Unless they are saved by the hunter gatherers, they are doomed, despite their knowledge of science and technology. Joseph Henrich talks extensively about these examples in his book, “The Secret of Our Success”
Of course I want to think I would do better. Maybe I would manage to integrate with the local indigenous people, but the reality is I would likely die. Either way my knowledge of science and “advanced” civilization will benefit me not at all.