Percy Jackson had fallen into some pretty bad habits, being raised by Gabe and all, he was about 18, after everything that happened to him, all these wars and losing everyone around him, he couldn't take it anymore. He believed he needed- no deserved to release some steam after everything, sure it broke his mothers heart to see him like this, so he got a low paying job, part of him didn't want to see the disappointment on her face every time she looked at him. Percy was destroying himself on purpose, he never wanted this, he never wanted to be a hero of what felt like a dozen prophecies, so he turned to what any teenager would do to escape life, Drink, smoke, maybe even get a tattoo to feel something.
He was completely out of character now, and it was so tellable, from the clothes, to the ink on his skin, all the way to how he would often be irritated from being hungover or the smell of smoke. It was a complete one eighty from his usual personality as to which everyone loved and he was adored. He was still nice, but not as much, especially when you tried to break him out of his current habits, he'd get all snappy, brooding, or no response at all, depending on who the person was. All his friends tried to help him, but no luck, nor would he open up.
it was clear to everyone in his life that he had changed for the worse, not a lot of people would talk to him anymore, especially as he's grown older his eyes had this piercing emerald look of all the dangers found in the earth. It almost seemed to have a faint bright green ominous glow when he was extremely upset, or atleast thats how everyone perceived him, more intimidating that his eyes seemed to pop out more. The once beloved Percy was now your typical teenage dirt bag