The hardest thing is to keep quit and don't show anyone your real intentions and pretend it's not that bad. The mind is just screaming to tell someone, relief of the heavy thoughts in our heads, but you can't.
That's the real struggle, going hours at end every day that you need to end this life, but can't tell anyone, it's mental torture.
If you tell anyone close they will have to live with the knowledge that they could stop you and may report it to authorities. If you tell any doctor or therapist your real intentions they may lock you up again.
I have lied many times to doctors downplaying the severity of my thoughts, as long you don't have any plans they don't take you seriously. If they only knew that I already prepared my letters and will and spend almost 700€ to CTB peacefully.
If I would tell anyone my exit may disappear and I have to relay of more primitive methods as hanging.
They will stop you mostly for their own sake and I don't blame them, the thought of being able to stop someone from dying is hard on people who never experienced near death or existential questioning.
The pain of carrying these heavy thoughts are our own to bear, with the rare exception of this site to vent.