You didn't do the house chores because you just turned 18 and you're an adult now. Your mother dissaproves of your bratty behavior and reminds you, you're still under her roof and the punishment will be different from now on
I find nude beaches are often really crowded and I've had some of the most uncomfortable and unwanted interactions with guys at nude beaches, so I much prefer to hike for an hour and find a hidden beach which I can enjoy all by myself!