When should I start looking for my prom dress?

I'm curious, when is the ideal time to begin searching for my prom dress? Is it better to start early to ensure I have plenty of options, or should I wait closer to the event to see what's trending? How much time should I allow myself to find the perfect dress, and what factors should I consider when making my decision? I'd appreciate any advice you can offer on navigating this process and ensuring I end up with a dress that makes me feel confident and beautiful on prom night.