If time travel is real, I would love to tell my younger self to start reading the bible and discover that man's life consisteth not in the abundance of the things which he possesseth.

And he said unto them, Take heed, and beware of covetousness: for a man's life consisteth not in the abundance of the things which he possesseth.

Luke 12:15
King James Version (KJV)

Great read @geekgirl :)