comments:
warrenao posted on r/lefthanded13w
It might be the can opener. Some are better than others: Better grip on the can rim, deeper piercing of the lid. This is the general style of the one I've been using for something like 30 years, though I can't vouch for this specific model or manufacturer: https://www.amazon.com/Rocky-Mountain-Goods-Classic-Manual/dp/B0DSTD6G16 And yeah, an electric might be what you need instead. Edited to add the name of the dang thing: It's an Ekco Miracle 885, which I don't think they make any more, and "vintage" ones on eBay are selling for US$20, f'pete's sake. Darn fine can opener though.