Dear time0,
If "blocking" is something that you have always used, carry on with that.

The trouble is, is that the memory can come spilling out.
If this happens,use other coping strats-
Keep yourself busy (but without rushing around)
Play some music (that is not related to the past)
Go out and get some fresh air, somewhere peaceful
Learn some relaxation
Practice slowing your breathing
Visualise yourself in an imaginary safe place

I hope that you will consider finding a therapist, it is confidential and no one would have to know about it.

Thinking of you.