Qing Wen Request: Life Words

Hi all,

I've posted requests in the past and they seem to have been incorporated, so here's one more:

I have real trouble knowing how to use all the different "life" words:

生活

生命

人生

辈子

and there's way more that I 来不及说

I think this would be a great Qing Wen topic, here's hoping you agree!