what's the meaning of a "birthday"?

tuesday, 30th July 2013.. i am going to 22 years old..
22 years ago, i learned many things.
22 years ago, i experienced many good or bad things.
22 years ago, i grew up.
22 years ago, hmmmmm.. the only question in my mind is, "is that every thing i've done is enough to get Alloh's ridho? how if the death is come? am i ready enough to face that?"
too sad to remember..too much wasting time, too much sin that i've done.. T_T
Alloh please forgive me..this time i want to ask your forgiveness..for everything..and for tomorrow, i am sure i will always ask for your forgiveness..because i am just an human, there's nothing i can do without You, Alloh..please always guide me :)

beside that, just wanna say..thank youuuu Alloh :)
too much rezeki and happyness come..too much! :)