How did you learn to be more feminine and dress like a lady?

For context, I’m a female college student. Can you tell me how you learned to dress and look feminine? I’d like to stop wearing baggy clothes and dressing like a tomboy. I want to clean up my wardrobe and improve how I look and dress but I don’t really know where to start. I feel like most dresses are body con and I’m not curvy so my body looks like a rectangle when I wear fitted clothes. Please give any advice. Regardless of what season it is, I feel like it’s so easy to just put on jeans and a hoodie or jeans and a tank top. I really want to work on my confidence and be comfortable being girly