Hi and Welcome,
I can relate to the overdrive that you're talking about, though I am an alcoholic. But, once my mind was made up to drink, I was off and there was no stopping me. I would get such a rush of energy as I went to the bank and then the liquor store. I really think that I loved the adrenaline rush, sneaking around, as much as the actual drinking.
What worked for me was making big changes during my day. I would make myself be doing something else so that I couldn't drop everything and run out to the store. Get rid of the needles you have, change your routines, call someone if you feel an urge, do whatever it takes.