How old are you? You sound about 12 or so.
She lost her respect for you a long time ago so you need to leave her alone. Learn how to talk treat girls properly, and then focus on other girls when you're ready.
“This planet has - or rather had - a problem, which was this: most of the people living on it were unhappy for pretty much of the time. Many solutions were suggested for this problem, but most of these were largely concerned with the movement of small green pieces of paper, which was odd because on the whole it wasn't the small green pieces of paper that were unhappy.” ― Douglas Adams, The Hitchhiker's Guide to the Galaxy