我23了，有人说我长得像18岁。 用英语怎么说

I am 23 years old, but someone said I lool like an 18 year-old.

倒过来说：
Some people said that I'm look like 18 years old,but in fact I'm 23 years old already. 有人说我长得像18岁，但实际上我已经23岁了。

I'm 23, but somepeople say i look like 18.

I am 23 years old,but someone says that I look like an 18 years old person.