i do not feel feminine enough. would really appreciate some advice on how to figure out the feeling better and work on it.

hello, I'm 19 F and i feel im struggling deeply with my sense of femininity. I feel very awkward and ugly whenever i try to dress pretty or simply do my makeup. I’ve never been able to dance, I’d stand stiff and awkwardly when asked to try. I feel this stems partly from the fact that ive been very skinny my whole life and have always been directly or indirectly bodyshamed by people around me. Whenever on parties with my girl friends, i always stand awkwardly to the side or get mocked when i try dancing. All of it while i watch them and wonder how they can lose themselves in music, their movements flowing effortlessly. They elude such feminity, something that I feel men would literally worship and go crazy for. They have that sensuality and feminity in them that makes them women. I want to feel the same thing but I feel I just simply lack it. I feel undesirable and that i would never be able to satisfy my man because i lack that feminity that makes women desirable. I have a constant fear that my inability to embody this kind of sensuality might eventually drive my future partner to seek it elsewhere.

to add to all of it, recently my boyfriend sent me a reel of a woman performing a sensual dance, accompanied with the text “you’d look so hot dancing to it”. it kind of made me upset and wanting to pull myself away from the relationship. Felt more bad because he very well knows i cannot dance. While part of me wonders if I'm reading too much into this situation, i can't shake off how deeply it bothers me. i’d be really grateful if i can get some help figure out my feelings clearly, and why i feel disconnected from that particular kind of feminine energy that seems to come naturally to others and what can i about it