A lot of stuff I hear in sustainability circles is oh, I still live at home what can I do?
Besties there is so much you can do.
You got chores? Dishes one of them?
You can fill up the sink with water and wash with just that. Less water than constantly running
I find that gross but my grandma does it. When I do dishes I use a jar with a drop of soap, fill it with water, and dip my scrub brush in that so I'm not wasting soap.
You can also ask if you can keep a potted plant (edible plants are bonus points) or a garden
Also bonus points if you use food scraps for a garden. That's a whole topic for another post another day but seriously look into it
Or you can trade plants with friends and neighbors
You can wash your clothes on cold, ask if you can hang dry your clothes
You can use eco friendly laundry detergent, or just start using the actual amount needed. That stuff is so concentrated it isn't even funny
Use reusables whenever you can
Try to eat less processed foods
Try to eat more plant based
Try to limit your car trips
Take walks and pick up litter
Go to the beach and pick up litter
Bonus points for separating recyclables
Learn to repair your clothes, a basic sewing kit should be all you need for simple mends
Shop at yard sales, thrift shops, second hand, or local
Weave baskets out of toilet paper rolls. No idea how you do it but I've seen it and they look pretty cool
Learn an "old fashioned" skill, like spinning yarn, canning, gardening, basket weaving, wood carving, etc
Try to be creative!! So much about Solarpunk and sustainability is about being creative with your solutions