I need some menstrual cup advice!

So, I wanted to try a menstrual cup yesterday and I just got frustrated, because I can't put it in. I'm not sure if it's because I'm doing smth wrong but it just doesn't feel right. When i try to insert it, it feels irritating and it doesn't want to go in. I didn't want to force it in, because it started getting painful.

Am I doing smth wrong?

Can someone please help me, because I'm really frustrated :(