is it destiny or hardwork?

last few months i was so busy vd exams, entrances, studies,dint gt time for blogging...
in past dayz i got jolted vd a thought does destiny plays d most unenviable role to prepare you to fight or is it hardwork which makes you what you want to be...i cleared all d written entrances..d toughest possible....but failed in interviews..was pissed, depressed, was cursing myself....lastly a thought came running from my best friend "every thing happens for its own good...", now what?
why we came across this thought only wen we fail?...seby told me its jst dt v give up our failure n lend it to d curse of bad fate...but inside out we knw whr we go wrong...still...i m nt convinced till date..nw m doing a professional course smwhr down d line i still think y it happened vd me dt i got rejected in topmost institutes?...dn d answer came from same person, its cus v r beggars n nt choosers...is it so? hv i got wot almighty wanna gv me as he wanted..m i nt capable enf to snatch d opportunity lying in front of me,by myself,vd my efforts?
i dnt knw if in life i wld ever gt dese answers....