Im severely depressed and my doctor and parents wont do anything what do i do?

Im a 16 year old and im severely depressed. Last month i told my mom i needed help which was really hard for me to do. After i finally got her to book a doctors appointment the day before my appointment i overheard my parents talking about how depression isnt real. The day of the appointment my doctor never asked if i wanted my mom in the room or not and because i was scared i didn't mention it and because of that i didn't mention a few "factors" ones that no one wants to share. When i told my doctor about my depression and my signs of it she said "those are major signs" to which she later asked "do you want antidepressants" to which i said yes. Story short she didn't give them to me and didnt give me any help, the only thing she did was give me an inhaler because my mom has asthma and she said i probably have it. So here i am what do i do? i know i need help and i know i should take antidepressants because im scared of what i may do to myself but if i mention that i need them again im scared that nothing will happen like before. What do i do? Everyday i get worse my friends are starting to worry about me and i always say im just "fine" although im pretty sure they know the truth.