i can relate to so much of what you are strugling with, benzo withdrawal is pure hell. sorry that you are suffering so much
the only advise i can give you is to keep your mind occupied, as much as possible, that way you will have a clearer state of mind and find the perfect moment, being phisicaly ill and on a psychiatric ward because of a failed attempt is beyond torture and that can completely break anyone, even more than you already are.
the perfect moment will come, it is just a matter of patience and i know how hard it is to find peace with a chronic illnesses and addiction issues. but in my mind, it is way better to endure the pain a bit longer than to end un locked up and then on constant surveillance, if that happens you will have to wait years before an opportunity shows up ever again.
split your benzos in half and never take your mind out of a book, series, movies or even videogames, distractions really help to find patience and look at the very least mentally stable to the ones around you, the least preocupied your family gets about you, the more opportunities you will find.
good luck!