How can I get over someone I never dated?

i recently about six days ago ? started talking with someone with the intention of being friends and we’d talk a couple of times a day every for the past six days. But i immediately grew incredibly attached and obsessed with them i have no idea why it’s been driving me crayz. it didn’t help when they teased (?) me i guess and said if my compliments or well praise to soemthing they had done was flirting. it hasn’t left my mind at all. i don’t know what to do or why i’m feeling like this. and the worst part is i can’t say anything to them because i’ll just look weird i bet. i can’t help it i think about them so much and i check their stuff a lot and my lockscreen so much to see if they’ve texted me… is there any way to help with this ? it’s been really draining and causing me to overthink really badly.

the most debilitating ocd flare-up i’ve been having for the past few months has been about the guy i used to talk to. we weren’t dating per-se, but whatever was going on between us was very confusing and unclear, and it ended up with me being very hurt. he was basically leading me on, and couldn’t commit to me. it’s been months since we’ve stopped talking and i still can’t stop thinking about him. i don’t even care about him that much in an objective sense, but i am genuinely obsessed with him. everything i see reminds me of him, and my mind is constantly running through thoughts about him and our situation — why did it go the way it did, what did i do wrong, does he still think about me, etc. it’s honestly so humiliating and makes me feel pathetic because i know he’s probably moved on by now, and i still can’t handle the thought or sight of him. i just wish i could stop ruminating, because it’s gotten so bad that i can’t focus on school or anything else in life. it’s so constant to the point where, when i bring it up to my friends (which is very often), i’m met with concern and even frustration rather than sympathy. how can i cope with the rumination? it’s genuinely exhausting, and i can’t sleep at night because my brain is just running like a motor. i have dreams about it almost nightly as well. anything helps!

Okay, just wanna start by saying that I don’t have ROCD. I have perfectionism OCD, and I get intrusive thoughts that no one will like me, I’ll lose all my friends, I’ll be alone for life, etc. if I don’t have things “just right.” I feel like every time I like someone, my OCD just gets worse cause if I don’t perform compulsions, I feel like I have no chance with him. Your handwriting wasn’t smooth? Guess your love life won’t be either. The volume of your phone was too low? Guess your chances with him are too. Failed to draw your graph perfectly symmetrical? Guess what else you’ll fail at. It’s honestly exhausting, and that it isn’t even it. I feel like I tend to fixate on my crushes also. I wanna be 100% sure they’re a good fit before making a move, and that’s really problematic cause there’s just no way to know. And even if I deem that they’re a good guy, I STILL won’t do anything cause I always expect the worst! What if the first impression that I make is so bad that he wants nothing to do with me? I put so much pressure on myself to get him to like me back that I’m terrified to make a move. I’m so focused on the prospect of a second convo that I don’t even want to have the first convo! Like rn, there’s this dude that caught my eye. He’s a senior in high school, while I’m a junior. I’m taking AP bio, and he’s taking AP chem—both are 1.5 periods, so I see him in the cafe and during the passing period (we leave the cafe halfway through the lunch period). I purposely plant myself next to him in the halls during the passing period but haven’t worked up the courage to talk to him. He’s single, I don’t have any classes with him this year, he’ll be at college next year, we follow each other on instagram, and my friends have told me that he’s nice (and keeps to himself), so there’s minimal risk in trying to talk to him. Thing is though, every time I think about introducing myself, I just imagine all the ways that it can go wrong. What if he hates me? What if my first impression is actually good and we become friends, but he doesn’t like me back? What if I tell him I like him over messages, and he screenshots my text and posts it on his instagram story? I don’t know what to do. I know that high school is kinda early and that I still have time to figure things out. I’m just worried that I still won’t have things figured out when I need to. Any advice or personal experience would be welcome and greatly appreciated!