Pls help a girl out. A crush or just desperate?

I’ve posted on here before with this exact situation but deleted it because I thought my mom wanted to check out my app one day and I didn’t want her to see this because she probably would tell me to ask her. I need 3rd person outlook on this. I know it’s not a big deal but I’d appreciate if you comment opinions and shoutout to the people who did on my other post but I was so quick to take it down I didn’t get to read it. I have a crush like most 15 year olds. But I’m tired of sitting back and just letting my brain make up scenarios of what would go wrong. I have a friend in grade 9 (we don’t talk much anymore bc school and holidays are busy,) who knows him just a tad. So one day in August she let me send her Snapchat streaks and he responded or I answered a previous snap he sent, can’t remember exactly. He snapped again and I added him on my snap because he goes to my school and is in my grade. So he doesn’t have ANY classes with me but I see him around sometimes. I don’t wanna do the whole talk on snap but never in person. I hope I have one class next semester to break the barrier and litterly just start a convo. If I ever do i want closure (sounds weird I know,) but to know if the vibe isn’t right or no connection. All my other crushes litterly go NO where. Just friendly talking but that’s all :(. Most my friends say, go talk to him etc but it’s hard because I need the push. In class it’s easier to ask for help & start convo. Going up to someone, which I’ve done before, can get uncomfortable on both sides if it’s forced. I know, having a bf isn’t what I should be focusing on but i at least wanna try getting to know him. School ain’t that busy that I’m doing homework for 4+ hours after school and at lunch. I’d appreciate the opinions/ comments, and if you have been through this before!