I SI because:

it gives me a boost of energy as long as it isn't a scar
it positivly modifies my behavior afterwards
it makes me more likely to do work
it momentaraly fixes things
it gives me something to focus on besides emotional turmoil
and it is a way for me to be in control

I also can relate to the feelings that taking care of the wounds can elicit

The "postive" effects last as long as I feel pain or when I rub the cut and the pain returns, the pleasant effects return.

Sorry no advice...yet, but Mynameispete I am glad that you are here and I wish you luck in getting help and support