No, आप were alive once before this life, and after आप die आप will live for eternity in either heaven या hell, the place आप end up is determined द्वारा your faith in God. But saying that आप only live once implies that आप are an atheist, so आप most likely will never understand and of this.
Judging from that यूज़रनाम and that "question", आप are from 2011. Use your time machine and travel back to your rightful time period, otherwise this time period's peace will be disrupted.