I'm hesitant to comment on this. This is a very personal decision that you must make but don't let the family 'trouble' at the moment be an influence...although I imagine it could be.
When my Mum was close to passing, Lukemia, the Doctors told us that she was a fighter & that they could resuscitate her if anything happened, but she'd come back worse than what she currently was. We knew she hated how she was & her quality of life, so in the end it was a simple decision. It was hard to make that for a loved one & I just don't know how anyone can make it for themselves.
Get yourself out of the maelstrom, have a long hard think about it, but also consider the options of how you may come out of it after resuscitation.