Diva cup troubles, can someone help please! ❤️

I did all the research necessary before spending $40 on the diva cup and now that I got my first period with the diva cup i’m having a hard time. Im 16, a virgin and weigh about 115 so it’s pretty tight down there, I’m starting to feel like maybe the diva cup isn’t for me? It won’t go in, and forcing it hurts too much. When I thought I finally got it, too much was hanging out so I immediately knew that it didn’t go in fully. I tried to put only the top in and pushing the rest in but it wasn’t moving at all. I really want this to work, can someone help me or give me tips. I watched a million diva cup videos, none helped so now i’m hoping one of you can.