I saw people changing the hormones inside of them
What do hormones look like, and how did you see inside people?
Few schools, in my experience, have X-Ray equipment; Fewer yet have CAT scanners or MRI machines.
And in my previous experience as a Molecular Biologist, I never once met someone who could identify hormones
in vitro with just the naked eye; Or anyone who could directly and non-invasively identify them
in vivo at all.
The human endocrine system is eye wateringly complex; Endocrinology is one of the most obscure and difficult subjects in biology, as the number of feedback loops, positive and negative, is bewilderingly vast. Worse, different tissues respond differently to identical hormonal stimuli, so there's a constant balancing and rebalancing of hormones occurring at different rates in different organs and tissues.
Attempting to simplify the picture by concentrating only on a subset of hormones (those most directly involved with sex, sexuality, and reproduction, for example) is fraught with opportunities to go wildly wrong through a failure to include things that are vitally important, but far from obvious.
In short, what you are claiming is physically impossible. So what, I would like to know, did you actually observe, that has led you to make this extraordinary and frankly impossible claim?