A pure devotee has no demand from the Lord. His only concern is to serve the Lord sincerely and seriously and he is not at all concerned about what will happen in the future. — Srimad Bhagavatam, 04.09.29.
Material sense gratification, sinful activity kills the propensity to serve Krishna.
Lakshmi, the goddess of fortune, is called chanchal. Use it in worship of Lord Krishna.
The best use of power and opulence is to engage them in the service of the Lord.
Srimad Bhagavatam 1.15.5
Hammer every thought in your mind thinking of how to serve Krishna.