[19M] Looking for some honest advice!

Hello! I'm from India, and one thing that often holds us back from initiating conversations with women is the high moral standards instilled in us during childhood. Here's the main part of my story: Back in 2021, when I was in 11th grade, a girl joined my tuition class. She was pretty and down-to-earth, but I had no idea how to talk to her because, honestly, I was pretty inexperienced back then—and I still am, to some degree! 😆 I find it easy to converse with girls I feel comfortable with, but I struggle to say even a single word to someone if they don’t start the conversation. At that time, I sent her a friend request on Instagram but never interacted with her, largely due to my fear of starting a conversation. I typically prefer not to engage with girls I haven't known for long. Fast forward to 2025, and she’s still in my Instagram feed. Occasionally, she likes my stories, which are usually about general thoughts or music, not my workout photos or anything personal. Now I can't help but think about how she's likely single (99.999% sure). I really like her, but I also respect her boundaries. I hesitate to ask her out because I don't want her to feel uncomfortable or think that my only interest is physical. The thought of her rejecting me is daunting! Should I just let it go after 3-4 years of following each other on Instagram without ever really knowing if she'd be open to a relationship? How should I approach her? Could you please help me figure out the best way to express my feelings, or would it be better to move on since I don't have a deep attachment to her? I just want someone to be with, that’s all.