Sometimes I feel bad about eating meat

Me too. I used to be vegan but started eating animal products when I was in the psych hospital. I was pretty desperate for any pleasant stimuli. I'm in a much better place (physically and mentally) and probably should be vegan again, but it really feels like a futile effort. The measurable material change in the world from me eating animal products doesn't seem to extend beyond my diet and occasionally feeling guilty. I know there are game theory arguments you can make that suggest I should be vegan anyway, but I can't internalize them I guess.