I want to write something today that's inspiring, something along the lines of, "It gets better" & "This pain doesn't last". However, it really just depends on A. Who or what the addiction is and B. What you would be losing/gaining by saying goodbye.
What if saying goodbye was what tore down everything you spent your time building? Ignoring those you love, passing up opportunities, isolating, changing everything about yourself, for that person or thing.
Then when you quit them, what are you left with but emptiness? Just a shell of what you became for them. Dead inside.
I'm grateful my children have a good home right now and are far away from my damaging life choices.