Caged mind

somebody has asked me a question (repeatedly) which has been the saddest past i hate to bring up since twelve years old.
i thought i had recovered and the wound has been healed over the years.
ironically, it is getting hurt more and more. The harder i try to avoid talking about it, the deeper the wound has become. It is like a invisible trap that has my mind caged inside it, just like the above caged tree with its root trying to get out and rooted in more fertile and solid ground.