how potent will this be?

[NightProwler]

okay well ive got this water bottle with about 1 1/2 inches of vodka (its like 2 shots worth) i had about 2 grams of stems and broke them in to slightly smaller bits and dumped them all in there. i figure since theres less alcohol, there will be so much more thc concentrated into those 2 shots. i started this about a week ago, and have shook it every day.. except i forgot a couple days but wahtever. if i do thios for another 2 weeks, how potent do you think this drink would be?

also, tell me if im doing anything wrong...