Guidance Needed: Handling Deep Emotions Within Halal Boundaries

Assalamu alaikum everyone, I've got something on my heart and would really appreciate some Islamic advice while sharing this. I attend a school where girls and boys are separated from Year 7 onwards, so there's basically no interaction during the school day. Any communication usually happens outside school or through social platforms. There’s a girl in my year who’s been on my mind for a while, but lately my feelings have become much stronger. I remember her from primary school since it was mixed until Year 6, but that was ages back. Somehow, she's the one I always notice. She seems deeply committed to her deen-she wears a niqab even though we’re in a Western country, which isn’t too common especially at our age. But there’s just something about her: she’s kind, smart, and genuinely good-hearted. Recently, I overheard her speaking as she walked past during home time, and I was caught off guard by how gentle and soft her voice was. It wasn’t a big deal, but that moment has stuck with me. Since then, I find myself thinking about her way more than I probably should. What started as a small crush feels deeper now, and I can’t seem to stop thinking about her. It’s honestly starting to unsettle me a bit. But with our school setup and religious boundaries, it’s not like I can just approach her. Even outside school, it feels complicated. She might be on social media, but I doubt she’d accept a follow from a random guy, especially given how private she appears. So now I’m kinda stuck. I don’t want to act inappropriately or cross any lines, because I truly respect her and her values and want to stay within what’s halal. Yet, I can’t just turn off these feelings, and it’s getting frustrating. So I guess my question is, from an Islamic perspective, what’s the right way to handle this? How can I manage these emotions without overstepping any boundaries? Would appreciate any thoughts you have.