Adventure?

I'm alone ....ever since Ali (my younger sister) died in a freak accident that ending with the car drowning into a lake. 1 year after Ali's death mum took off. She couldn't handle it any more so she took off without a trace. Just leaving my dad and I alone. After being diagnosed with depression he turns to alcohol. What can I do? , I can always do what mum did just take off but I couldn't do it alone....that's when it came to me my best friend : Robinson.....