I have to say that Fluoxetine 10mg is a very low dose, and i know for many people (including me) it doesn't do anything. Could you ask your doctor to go up to the more reputable 20mg?

EDIT: and I do freak out at little things and get overwhelmed at them, that's a very common depression 'thing' and its hard but I can tell you it does get better. It's gotten better for me. I've relaxed a bit more and the small things I can deal with.