What is your mental age

Young or old well thats your physical body, ever wondered how old your Mental age is... I did so I took the test. https://www.arealme.com/mental/en/

(p.s. my mental age is 43, and here i thought it would be 30 at least I feel sooo oolllddd (●￣(ｴ)￣●). well im still in my teens so pshh (￣O(￣) idc)