My old lady baby is turning 13 soon

My mom and I found her battered on the streets around 12-13 years ago. We don't know her official age, but vets estimated she was close to a year old when we found her and it's been almost 12 years since. Honestly if it weren't for all the grey one might think she's still young with how she acts. She's always been lazy, but she's also always had hyper moments and loves to play. At this rate my girl might be immortal.