Sudden extreme anxiety

Hi everyone :)

I recently graduated with my bachelors degree, and to celebrate my long distance boyfriend has come to stay with me for a few weeks. Ever since I graduated, I’ve suddenly started to experience this extreme, debilitating anxiety that I’ve never experienced before. I can’t sleep; I stay awake at night listening to my boyfriend breathe because I’m terrified he’ll stop. I’ve had to take sleep aids every night just to feel tired enough to close my eyes. Throughout the day it clouds my mind and I find myself worried about the things I say and doubting my memory, if that makes sense. I suspect it’s because I’ve spent the last four years balancing work, school, friends, my relationship, and hobbies relentlessly and am now suddenly out of my routine, but who knows. My boyfriend and I went to a movie today and it struck me about halfway through and I couldn’t enjoy the rest of the movie. I’m just so tired of it and I feel bad for my boyfriend, who came all this way to spend the holidays with me and I’m an anxious wreck.

I know I should probably see a therapist, but I won’t be able to get in until after the new year due to travel plans. Any advice how to power through these next few weeks until I can get in to see someone? Anything helps, please and thank you <3