Dean....
Drink a lot of water....Gatorade and Ensure are good too.
I found Lifesavers...and other hard candy useful for shakes.
Cut out or way back on caffeine ...that helps too.
Be gentle with yourself.....rest if you can't sleep.
Warm showers and baths are relaxing....
Remember...this
can be your final de tox
Did you make it to that meeting you mentioned?