<human>: Can you provide a brief rundown of the text in within 3 sentences?

I'm going on exchange through my university next semester and will be living in a foreign country for six months. I leave in less than two weeks.

My friends and family keep telling me how much fun I'll have, to stop stressing and that it isn't such a big deal. I know I'll have fun, I know it will be a great experience and most of me is really looking forward to it, but that doesn't stop me from freaking out. I don't speak the language, I'll be literally on the other side of the world from everyone that I am close to. I'm a massive introvert and not very social and just all of the running around trying to get things organized is taking it's toll on me, and I haven't even left yet.

I'm 20 and I love traveling and I've been living out of home for a while so it's not as if I'll be totally clueless. But I'm already trying to deal with my relationship falling apart and the subsequent heartbreak, and ongoing problems with mild depression/anxiety. I would seek professional help but there's not much I can do in the < 14 days that I'm here.

I've completely lost my appetite and have lost 6-7 pounds in the past few weeks, when I didn't really have any spare weight to lose to begin with. I keep bursting into tears unexpectedly and my sleep is starting to suffer. I know my reaction is over the top and I'm doing my best to pull myself together, but hearing everyone tell me that there is nothing to worry about just makes me feel even weaker.
<bot>: Leaving to go on exchange overseas in < 14 days and I'm scared. Everyone keeps telling me I'll be fine but I'm an emotional wreck.