What can I do in one night to help myself look gorgeous by tommarrow night?

Relax, take a bath, drink some herbal tea and get a good night's sleep. Sleep does wonder for our complexion. Also when you get up in the morning, before you eat or drink anything have a lemon juice with lukewarm water and a tsp of honey (in fact, I do that every day because it is good for your skin).

drink lots of water, take a nice bath using a shower gel that has natural ingredients, a good moisturiser and breath. Stress doesn't do good for the skin so think of positive things, don't worry too much you'll do great just be yourself and smile ^-^

Drink lots of water, and have a good soak in the bath and buff your skin with a good exfoiliator and use a nice moisturiser with a bit of shimmer in it, will make you skin look glowing! And get lots of sleep so that your eyes are nice and bright!

mmmk drink lots of water, eat lots of antioxidands they help your skin, hair, and mood, to toniong excercises that keep your body looking sleek, talk to people and watch comedies both help your mood and laughing burns calories plus its fun! also use lots of lotion and pamper yourself! i like to take a long bath and wash really nicely with the radio on then get out and give myself a mani pedi while watching tv and eating low-cal snacks then I dance and clean my room at the same time and so I have a clean room i smell great my hands and feet look good and I'm clean. Also when you sleep sleep with your face up to keep your breasts perky and your face lifted. also right before bed lotion and do a face routine it will make your skin glow, do yoga in the morning to keep you limber and improve your mood stay in the sunlight to help your skin nice but wear sunblock also stay with people to help yourself socialize and get used to being with people, stay happy!!!!

Well, if you can post a picture or something, then I could see what you need to do. :D