Hello Arose, thanks for coming to the forums.
What you have listed and told us all that you are suffering from doesn't seem to be helping you, I'm very sorry for you, but if these only happen for a few days then it may be a different situation.
I'm not qualified to diagnose you, only your doctor can do this, however, from our own experiences we can suggest that you can contact ReachOut, Headspace 1800 650 890 or Kids online 1800 55 1800, they will then be able to help you with your mother.
If you are 16 years old you can go to your doctor and discuss how you are feeling, but if you click on 'The Facts' at the top of this page, you will see the K-10 test, do this several times but not one after the other, different times as well as days, then take this with you whereevr you, especially to your doctor's appointment.
What does concern me are these 'risk taking behaviours' and would like to talk to you more about this, only if you want to.
There is also the BB booklet you can read about all types of depression and you can find this by clicking on 'Get Support' at the top, scroll down until you see 'Publications to download or order' this may help your mum understand what depressionsis.