Read please it’s important

So I’m a 15 year old girl. I’m dating a 17 year old guy. We both have very bad depression and my mum and his Aunty know about his depression but not mine. They made a decision together (my mum mainly) saying that we are getting too serious and we aren’t allowed to talk, text, call or see each other for 3 months and no dating for 6 months. They’ve been forcing us to breakup, I want to leave this place he’s the only thing that’s been keeping me alive I can’t live without him. Please give your opinions or suggestions on what to do as I’m struggling major time