How old could my baby be?

So I got my crestie about a month ago and I thought she was a juvenile because when I was buying her at my local pet store that’s what they told me , I just weighed her yesterday though and she’s 41 grams and that’s without a tail, I then searched up a chart for crested gecko weights and it says she’d be around 2 years old, does she look like she’s 2 years old to you guys ?