The evaluations will be over soon, and you'll be free of them and can go on with your life. Try to remember it's just an evaluation, not a painful medical proceedure. They won't touch you. It's just them talking and you answering them, that's all.
learn to control your emotions by thinking about the evaluation, and when you get upset that's when you force yourself to calm down and dream on about lying on the sand on the beach. you feel the hot sand under you, the sunrays in your sensitive aspie eyes, the salty smell and sound of the waves, the way they glitter in the sun, that kind of thing.
practice it till you have control over your emotions, something we aspies just dont have. suicide is a one way street, and will hurt your family and those who love you horribly. you will miss out on all the things life has to offer, and all because of a temporary inconvinience.