I want to travel to USA by Cargo Ship From either Portugal Or Spain.
So, please advice me if it is possible and in how much cost?
Moreover, is it possible that I can also have any job on cargo ship while travelling to USA, so that my travelling expenses can be reduced or waived.

By the end of next month I hope to get my seaman book. However, I never had any experience of seagoing.
I am Pakistani nationality holder.