URGENT: Addicted to Arctic Synergy, ~ 3 months none stop, last pack!

[icantremembermylegs]

SWIM is in trouble, he's smoked over 50 grams of Spice Arctic Synergy none stop every day for months, redosing heavily every hour or so or experiencing severe and overwhelmingly powerful cravings and withdraw after meer hours, both psychological and physiological. (conversely swim will get bursts of mind warping euphoria just thinking about his next fix, supressing screams of excitement and bursts of energy just seeing his bong)
Wake up, smoke, munchies, smoke, munchies, smoke, fall asleep, repeat.
But here's the kicker: SWIM is down to his last 3g pack and cannot source anymore so will use this opportunity to quit
SWIM needs to wean himself off gradually with this last pack, could someone please be so kind as to advice how best this could be done?
SWIM is considering finding a different legal high to smoke during withdraw to help, then stop that after 3g
maybe something like smoke so much every hour, then every 2 hours, then every 3 etc? so when its gone the 'cold turkey' is not so bad

please help, as swim is desperate, and will have to open this last pack in the morning