HEY, YOU GUYS!

in March, I am flying from Paris to New York City. This is my first flight ever and I am terrified. I'll be on my own and it's a 20+ hour connection. Fortunately it's a one time thing and I'll be living in NYC after that so I'll never have to do it again, but that doesn't make me less afraid. However, because I have Asperger's syndrome and I'm absolutely terrified of being around people in that sort of situation, I managed to get upgraded to business class on Emirates. Then the airline called me and told me that I was eligible for another upgrade, this time to First Class, provided I take a longer itinerary and fly from Paris to Dubai, and from Dubai to New York. Knowing that the Emirates first class is like having a little room of your own with a proper bed (just Google it, and you'll see what I mean), so I said yes immediately without realising one thing - it's a 14+ hour flight from Dubai to JFK. This means a 7 hour flight, then a two-hour layover, then another 15-ish hours before I touch down and go home. AND IT'S MY FIRST FLIGHT.

I am freaking out. I tried asking about this before but nobody responded. What can I do???

I'm terrified that someone will v*.
I'm terrified that someone will give me noro.
I'm terrified that I'll feel n* or even v*. (I once went on a 12 hour car journey and didn't feel N* at all, but I'm still freaking out about this).
I'm terrified that I'll have a giant, wobbler, pee-your-pants, shit-the-bed panic attack.
YIKES.

Please help me, guys. I need all the advice you have.