Yleeaile

Hi . My mother petitioned me when i was 19 yrs old . And now i have already my nvc and i am eligible for visa now . But my age today is im already 21 yrs old . Because my birth date is nov 13 2000. So i will my coming 22 yrs old this yr. But my visa class now is f22 and i am paying now my AOS and IV FEE  because i already received my nvc . 
 

and my question is ... 

if ever im turning 22 this yrs . I would still be able to to go to another country ? Or should i say that .  Am i still under the f22 visa class ? Is my age will be frozen or not ? Pls answer me .