need advice for first gyno visit

basically i’m 15 and I have my first gynecology appt on the 28th of April. Recently I got a tampon stuck in me and the nurses who took it out told me it popped my cherry and that I was the tightest they had ever seen. My mom wants me to start having appt with the doctor because I...

“obviously have something wrong with my anatomy” -my mom

i’ve been trying to loosen myself so i’m more comfortable at my appointment but it’s not seeming to work very well, does anyone have any ways of making yourself not so tight because I can barely have a finger in without pain