I can’t finger myself?

Hi! So I’ve been masturbating for years now but I’ve never been curious to try to finger myself until recently.

I once had a dream that I was having sex (keep in mind that I’m a virgin and I’ve never used tampons or put anything up my vagina) which I know is normal. And I could feel the pleasure in real life but it was a different kind of pleasure, the pleasure was not coming from my clit it was coming from my vagina so it was new to me and I remember it feeling absolutely AMAZING.

But I’ve always been too scared to put anything up there. I have tried but I can never do it because it feels very tight even when I am wet and turned on.

I saw myself in the mirror (I was not turned on) and my vagina hole looked very small. I don’t know if I’m normal of if it’s too small. I’m scared that I’m not going to be able to be intimate with someone one day. I’m afraid that I’m way too tight and that I may have vaginismus. I’m about to be 19 and I’m embarrassed that I’m this old and I’ve never done anything there before.

I was hoping that maybe I will be able to have intercourse because in the dream I could feel pleasure coming from my vagina. But I don’t know if that will be possible.

Any feedback would be very much appreciated💗