Like buddy, first of all, everything has an impact. Everything. It’s about what impact you want to have. Everything is going to affect something in some way.
Secondly: I live on a semi isolated island, power is nearly 100% hydro here, I drive a third hand EV, I have solar, tank water, self contained everything, I’m literally allergic to processed foods, I haven’t eaten palm oil (knowingly!) since like 2015, I eat meat maybe twice a week and it’s local, organic free range stuff that I can literally drive past and check to make sure they’re doing okay, all my groceries are local trade (mostly), I use reusable period wear, all my clothes are second hand, I’ve worked in both land care and animal care, I’ve been protesting since I was a child, I’ve advocated for numerous different things and organised group protests and the like. I think I might not be doing that
I’m not saying you have to do all that or guilting anyone in anyway over what they can/can’t do, but think of a better argument then “I know nothing about you but how dare you say we should care about the planet when I bet you don’t” it’s getting annoying.