It is not that I am trapped in water...
Sinking to the bottom, where the Titanic lays.

No,
I am drowning in my own thoughts; my own fears.

A boat may have enough lifejackets to save the many innocent people;
I, on the other hand, wouldn't want these thoughts treated carefully.

In fact, my thoughts and fears are not welcome passengers in my mind,
They are, however, the anchor weighing me down.