Hi dazedandcofused, real credit to you for having concerns about "keeping it in the family"
Sometimes as well-meaning, understanding and supportive family members (if they are!!) can be it can still take some professional help to find a way through.
I don't know if it might help to keep on and on asking them for some "outside help"??? When you said they freaked out after you visiting the inpatient facility I'm wondering whether that was about panic, fear about how bad the depression..........may have been for you, but perhaps if they have time to adapt to/accept the way things are they may be more supportive in getting you help???? Maybe?????
Then otherwise could you perhaps visit your G.P/pediatrician and talk to them about it more........maybe they could take things a step further. Perhaps they could even speak to your parents for you, to help them "take on board" the help you need???
I do understand your concerns about going inpatient though, although the most important thing is for you to get the help you need, right??
And there may even be outpatient programmes you could move on to trying if...........??? Some people say that particuar outpatients programmes can be really helpful.
Just some thoughts.............

Alison