I agree with about Half of what you said OP
The other half, just sounds like a flag signaling the sadness and despair that you are experiencing and experienced in the past of your life.
Memories are not in the brain... well, Agreed
You'll lose memories... incomplete
To be free is to start thinking... disagree (your definition of thinking is too darkish and glooming in my opinion)

Still want to be free?
yes, Free to be free!