How to learn to kiss?

Sorry for the repost, I wasn’t really sure where to put this.

So this is kind of embarrassing but hoping someone can offer some advice?

I’m kind of new to being in a romantic and physical relationship with someone. He was my first kiss and I always hoped kissing was something that would just come naturally to me but that has not been the case. I can’t seem to figure out what I’m actually supposed to be doing with my lips and I always feel like I just suck at it.

Sometimes he’ll ask me to kiss him and I get awkward because I don’t know how. Or he’ll lean in an kiss me and I’m just literally so awkward, I just kind of stand there with my lips still.

He’ll also try making out sometimes and I’m even worse at that.

It has actually made me cry sometimes after he leaves because he’s commented a couple times (not meanly) that I don’t know how to kiss or that we need to practice. I’m tired of being bad at it and I just can’t figure out what to do. I think part of my problem is I’m scared of doing it wrong, so I don’t really do anything at all.

I’m sure this sounds so dumb because everyone kisses and I know it can’t be that complicated. Can anyone offer any advice on getting better, or getting over the fear of doing it wrong while I learn?

I’m so dumb, I feel like I need to be told exactly what I’m supposed to do with my lips. What is wrong with me?!