You only live once so think twice, and make the most of every moment that you have. You do not get any do overs in this world and once you die that is it. Don't be foolish with the precious life that god has given you, don't waste or squander this opportunity. You should not be fearful of death because we all come to this end at some point. You should not embrace death or be reckless in your actions either though, or you are wasting the opportunity that you have.
Consider all of the people and influences in your life. Do they enrich it or are they a negative influence instead? If someone or something is negative then you may need to think twice about keeping them around. Why waste the precious little time that you have on this earth with negativity or those that try to drag you down. Instead seize the chance you are given, but be cautious and don't take undue risks.