Should i change my path??

I have been thinking so much after i got the bad news, should i change my path? the path that i chose several years ago or it is too late for me to do that?...i tot i can grab this chance, i put everything for this even though i got many objections from people surround me because i believed it could give me opportunity to change my miserable life, but i am really sad now, i failed! i don't understand which part make me failed, or my condition now that made me failed. or i put too much hopes......i've been thinking and thinking but i still couldn't get any answer...i know what mistake i made but i believed on second chance, but why nobody can give me the second chance??