I hate what I feel towards her

Hi, this is my first post on this subreddit and I think it’s one of the very few places I can rant about this without letting her know. This whole thing is quite recent but it’s already destroying me. It started on December 5th while I was scrolling on TikTok. I found a video about Spotify Wrapped and since I’m a huge music enjoyer I commented something about my most listened song (the Estonian entry of Eurovision 2024). The creator of the video responded to me quickly saying she took my comment as a huge compliment because she’s Estonian, loves one of the bands who wrote it but not the song itself. She saw my profile as well and it happens we both listen to Twenty One Pilots and her top 5 songs were all from the album Clancy. She gave me her Instagram and we started texting about our favorite bands and some personal topics like school since we’re the same age. I thought she was really nice but it went downhill when she posted on her profile pictures of herself… I tell you I’ve never seen anyone prettier than her. She became my crush and I got her Snapchat as well but she began to be a bit colder than usual, I think she hates me (she’s a dry texter/only puts a heart reaction when I tell her something). I know we’ll never end up being together because we live far away from each other (I’m from Italy) and she values a lot her irl friends, I’m 99.9% sure she’s straight and I think she already has someone (a guy who randomly followed and then unfollowed me on TikTok with 2 accounts, I’m afraid my crush talked badly about me to him so he did that. I’m obviously going to respect their bond). I don’t even think she’s the right one because I’m getting negative vibes from her. I feel guilty for liking her specifically because this would ruin our friendship and her view of me, also I need to focus on my studies a lot this year since my current grades are also very important for my finals, I’m the typical straight A student and I don’t want that this situation distracts me from my main goal. I wish I could control my feelings and pick who to fall in love with and when because this is the second time I’m feeling like this because of a girl. I want to block her, avoid contact and get rid of my feelings but I always fail to do so and her birthday is in very few days. Please give me useful advice mostly if you have already experienced something similar to this.