Do you think eating shrimp is just as bad as eating beef?

I’ve been a pescatarian for 8 years now and I don’t think it’s fair to think all animals suffer to similar degrees. I’m not even sure if crustaceans have an internal experience. Crustaceans are very similar to insects and if there is an insect infestation in my house, I don’t hesitate to kill them for my convenience, so why should I inconveniently avoid eating shrimp, which is my primary source of protein and vitamin b12? Do you think I cause just as much suffering as someone who eats beef or chicken?