Going sideways on ww2 convoys ... to fill a gap!

Seeking information on life on board for military personnel. How were days spent/convoy attacked.day to day activity etc?

Where would I go to seek specific information on the convoy/s listed below:

W12Z departed Clyde/Liverpool Nov 12/13 1941
WS.12ZM detached from WS.12Z (became DM.1 to Malaya ) December 30, 1941