Am I Grandfather?

I dont know what happen these days ,i feel like i am older and older ,every thing happen suddenly ,
how i dont know ,but i think this idea started just last month when i started my study ,most of the group were younger than me by 4 or 5 years,most of them are Chinese ,there are very small and they act like children, i'm look like their grand grand father,i used to be the youngest in any group that i join ,secondary school,the university,my firm where i used to work in libya,any event i join usually i'll be the youngest,but now every thing is changed,i'll be 30 after few months and this notion terrify my because i think there are some years were stolen from my life from who i dont know,how they were stolen i dont know,suddenly i realised that there is a big gap from my graduation in 99 till this date when i started my MSc in 06,i worked hard all this years and i did every thing i wish but there isn't anything is tangible,all what i gain is the life experience ,is it enough? i dont think so.