That's the reality of the situation. You will never measure up to any of the previous Chads that fucked her vigorously with their huge horse cocks.
She will be your first love and you will be number 50 for her. She has options, you don't. She can leave you for Chad at any time but you cannot leave her or risk being single for the rest of your life. She knows she has sexual power over you and will use it to manipulate you.
Best way to approach this is to escortmaxx and build up as much sexual experience as possible then maybe you could offer a passable experience for her but really you're still a cuck.
Better incel than cuck.
https://incels.is/threads/if-you-are-a-virgin-and-ascend-with-a-girl-that-is-not-a-virgin-youre-a-cuck.282360/