She thinks she knows how to make them love her again. I don't think taking her own life would make them love her, so it doesn't seem to be her option.
She already started to work on her mysterious plan, it's just not clear without knowing what it is. Hopefully, looking back at some things during this trip, it would be more visible.
In a Cardassian library
or in a Cardassian gallery
"Reagan, it appears, is really only an ardent unionist if the unions in question are in Poland" - Stephen King, Skeleton Crew