Depression

My boyfriend has had depression for a few months now and my mum has had depression for years but she's on medication. They say if your parent/s have depression you have a higher chance of getting it. I done a test on an Australian website called beyond blue answering questions on how you feel and stuff because I have felt miserable for a couple weeks now, I can't socialise, I'm tired all the time and I panicked about going to school every morning.. Anyway I answered the questions and my results said I am a high chance of having depression.. I mean I know it just a test online it doesn't really mean anything but I'm scared of telling my mum, boyfriend and friends how I'm feeling. I'm scared they'll think I'm just looking for attention or copying my boyfriend... I don't know what to do, I hate feeling like this