Can someone please help me?

i get terrible fomo (fear of missing out) and get jealous a lot, and there is this party in my town and a lot of people i know are there, including the guy i like, what do i do i feel like im about to throw up or have a panic attack, i dont wanna feel like this anymore.
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3 h
Like i want to get rid of these feelings forever, not just tonight
Can someone please help me?
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