Just because something does not have any direct monetary reward does not mean it’s not worth doing. Somethings are simply for enjoyment, while others serve a greater purpose that can’t be quantified by human standards.
Don’t allow the devil to make you feel like you’re wasting valuable time doing what does not bring you any monetary return. Continue doing what brings joy to your heart and is in service of others and / or the kingdom of God. You may not get paid for it, others may not see / recognize what you’re doing; they may not even know that you’re doing what you’re doing; but rest assured, it is impactful and your reward will come from God Himself.
God “will give to each person in keeping with what he has done.” God will give eternal life to those who keep on doing good. They want glory, honor, and life that never ends. (Romans 2:6-7)
Life's Logic 