Hallo Pikabo. I have the utmost sympathy with you. However, and I do mean this kindly - to misquote Jackson Browne - 'Your problem is you.' Flying, statistically, is one of the safest forms of transport and the A380 is a tried and tested aircraft. If you are travelling alone, express you fears quietly to the person next to you and you should find that you will have a sympathetic ear for the duration of your flight. The vast number of people I sit next to when flying do not like flying and do not want to be there, and there's nothing quite like a friendly chat to ease your fears and give you a good flight.
I hope all goes well for you and that you have a good flight home.