Lifetime could end up being along time or a shot about of time, it just depends on the life you are given. People have many decisions about their lives, how to start it and how to do certain things. People also have many questions about their lives, like where did they come from, where will you go when you die.
I think that if you want a better life you should spend time with God. Do things in the works of Christ. I don’t mean to sound all religious but this is all I could think about that would make your life fulfilling. Because as I know it when I die, God looks at your past and looks to see if you had a promising relationship with him and if I do then I will stay with him forever, in heaven. That is why I try to spend time with God everyday. Not only does it make your life better it kind of gives me peace. Other things you can do to make life better, is something hard, but you should be nice to everyone. I love to say “hi” to random people in the hallway it just makes me feel like I have accomplished a better life. My grandpa says he can improve his life by traveling to different parts of the world. Taking people he cares about with him and watching his family grow up and become something of them.