How are we supposed to move forward in life when the Bible says, "You must not covet"?
To understand, we first must know what it means to covet.
To covet has been defined as “to long inordinately for something WHICH BELONGS TO ANOTHER; as to covet a neighbor’s piece of property because of its fine view.”
There are many things that it is lawful for you to desire to possess, such as a mate, an automobile, or a home. It is also fine to seek to improve or to seek advancement, as long as you are not forcing someone else out of his position:
"If any man is reaching out for an office of overseer, he is desirous of a fine work." - 1 Tim. 3:1
But as for desiring things that belong to another, that is what the Bible warns against.
Jesus Christ even warned: “Guard against every sort of covetousness.” - Luke 12:15.
For Much More, See:
COVETOUSNESS - Links to Information (INDEX; Watchtower Online Library)
Greed (Insight-1 pp. 1005-1006; Watchtower Online Library)
Covetousness (Search Results From the Watchtower Online Library)