She gaslit you! It’s totally appropriate to nitpick a contract before signing—otherwise how do you know what you’re committing to? It’s appropriate to expect a professional to act professional, not like a spoiled brat. It’s appropriate to expect a mentor to respect you as much as you respect them.

Please give yourself some slack! She didn’t make you as a writer—it doesn’t work that way. She recognized your innate gifts and and maybe taught you how to hone those gifts, but innate writing voice cannot be taught—it’s as much a gift as anything could be.