Nipple shield ?

So

HAs anyone used a nipple shield with a non newborn for overactive letdowns?

Ive been struggling for weeks and about to shoot myself. My 3 month old on avg sucks 2 minutes each time 1-5 times per hour cuz my milk is too strong for him. It sounds like he’s being waterboarded each time. And bc of this he cant sleep well. I can’t take it anymore

Exploring options before trying to pump. I really don’t prefer pumping