<human>: This evening, my girlfriend [F/15] (long-distance) is at her best friend's house. She started sending me [M/16] a couple of weird texts and I thought she was drunk (she promised me she would never drink). I called her, she got angry because I asked her if she had anything to drink.

Now I feel like a completely overly-attached control freak for being so paranoid about everything. I always get worried about every little fucking thing, she says she sometimes finds it cute and that it shows her how much I care about her, but I don't know about that.

Every time I'm worried/paranoid/jealous/something, I feel worse than I have ever felt before. I feel like dying, I feel like nothing's worth living for, although my school stuff, hobbies, family stuff and such are going great right now.

I don't even know what I'm feeling.

I am really close to grabbing a knife and cutting myself, and I know that's not a fucking solution, but I'm just wondering if it helps or if it calms me down.

I would talk to a therapist, but our school psychologist is on maternity leave and I can't really go to my mom and tell her I need to see a psychologist, I don't really show my emotions to my family and I don't really like to open up to anyone except my girlfriend and MAYBE a good friend of mine.

My mom's boyfriend told me recently that being jealous is not a sign of love, but rather a sign of being possessive and that he never saw a woman as his possession, so neither should I.

Breaking up with her is NOT an option, she's the most wonderful girl I've ever met and the first person ever with whom I was able to share everything. Our relationship is great, but I get at least 2 of these episodes every day.

She's extremely supportive, even during these weird stages of mine, trying to make me feel better, but these things always last me like an hour and then go away.

I don't know what to do!

Can you succinctly summarize the text in 1-3 sentences?
<bot>: I get worried about my GF too quickly and have daily episodes when I consider self-harm. What can I do to calm down?