Can you describe feelings of fall in love for first time?

OK let you know I have never been in love before nor I have anyone crush or be love with me before The reason why I asked is because I'm writer and I'm writing a romantic and the female goddess who been alone in world for years and is deal first time falling in love for first time with a demigod who physically a human And having someone fall for her for first time. My crush have been on fiction characters my only crush on real person was back when I was little kid no real people back then. But yeah I like someone to brainstorming with me about this love story. And I got question about love and how I should show this if you are interested you can dms. Amd yes I have tried to write this but is ain't going well. I have researched. I have thought about writing this love story.