What's it like to be in Love?

Hello everyone who I'm asking this question, I am a fellow girl who doesn't know what's it like to be in love! Okay, so I guess I'll just get straight to the point I guessヾ(❀╹◡╹)ﾉ~

So, for most of my life, I haven't found myself liking a boy, or girl, in the sense of a "crush" sort of thing. Since I grew up with the culture of Anime boy hubbies and beautiful anime girls, I just had too high of an expectation to actually like someone. The only thing that goes around my head is the fact that someone stands out and are attractive (to me, or anyone else), but really that's it. Because I haven't fallen in love, I want to know about the experiences that people who use to fangirl/fanboy over anime related characters, but end up falling for someone in reality. As a person who's sort of a realist, I don't wanna live my entire life as someone who just enjoys anime and manga and decides to never marry or date a real person. I want new experiences that'll make my life unique , just like everyone else.

I also must ask people what's it like to love. I always hear stuff like "Your heart beating", "You getting nervous around him", and other stuff that I can just search up on the internet, but is it always like that? I might sound stupid, but for someone who only reads and watches stuff about love, I just want to know how other people felt like when they were in love. How do I realize that I love this certain person? Just how am I supposed to act like if I find out I love them? What difficulties are there for loving the person I like? I want to know questions like that, things that real people have experienced.

Anyways, that's all I'm spilling out. I'll be grateful for anyone who actually responds to this with an nice answer that doesn't make me feel like an idiot. Also, just a bonus, but do you think it's okay for kids in the Middle Grade (6th, 7th, 8th graders) to date?