Blackberry question

I just moved here and I’m shocked nobody told me about the sheer amount of blackberries here, holy hell. They’re an evil evil hell spawn invasive plant and I’ve gotten spiked so many times, but at least delicious berries can be gotten out of it. I’ve probably picked a pint or two already and I’ve literally only been here for three days!!!

Any of y’all got advice for how to go about picking? I’ve seen posts advising to avoid dog piss height and clean the berries (with salt to get rid of the fruit fly maggots) before eating. Would it be reasonable to go out with kitchen shears and hack back some of the vines as I pick? What do I do with the vines after cutting them, can I just fling them further back into the bushes?? Still learning the etiquette around foraging.