Why didn't my brownies work?

i made some cannabutter used 56g to 1lb of butter cooked on low for 3 hours than strained. used 120g of cb to a 450g brownie mix that made me 15 brownies did i use enough cb? i ate 4 brownies and i feel something but no way near as good as smoking
also how much cannabutter on its own would be a strong dose??

how much butter did the recipe for brownies require?

What temp did you bake them at???

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325F and recipe called for 120g of butter.

Maybe you cooked it to hot when making the butter...
Or maybe the weed is just bunk...