I agree with waterknob1234 - please see a pdoc or tdoc. They can give you an accurate diagnosis. You can find many depression tests online, but a pdoc/tdoc is the best way to determine if you do have this illness.

What I can tell you is, there are 2 types of depression. The therapist will ask you questions (probably similar to what you would find online), but the pdoc/tdoc will interpret your answers to arrive at the correct diagnosis.