paraphrase this

and work to earn my keep, ill write my family lonesomeness
each night before i sleep
a propervagabond
ill ride empty boxcart train

I will find a way to support myself and in doing so, I will alleviate the loneliness felt by my family. Every night, before I go to bed, I will write to them. I will lead a nomadic lifestyle, embracing adventure, and ride on vacant train boxcars.