Young Autistic adult terrified help!

I am feeling really really scared and terrified right now, I am scared of world war 3, its panicking me, I am being scared of being called into the miltary, I can't deal with people shouting at me, or the noises, I feel physically sick! Oh no, terrified, I really I am, its affecting my entire life this, I also have dyspraxia, ADHD too, Im really scared right now, will we have to get called up? Im scared