weed gummies before a club night, dose vs effect is doing my head in

were in toronto, weed is legal, we've fully moved away from drinking on play nights, but the gummy thing is melting our brains. last weekend i took what i thought was a sensible 5mg about 90 mins before a club night, felt nothing for an hour, took another 2.5, then BOOM at the venue around midnight i was practically welded to a sofa, totally couldnt engage with anyone, my wife was annoyed (rightly) because she'd held back. previous time the same 5mg did literally nothing all night. how do you lot get consistency with edibles? is it just that gummies are an unreliable mess and we should switch back to flower for nights that matter...