What does it mean when God tells you not to worry?

I needed money so I tried to convince all my millionaire friends to buy and sample my artwork online but I realized the website wanted your artwork to be promoted based on quality and not networking power so it only allowed strangers from another city thousands of miles away to view your artwork for free and it banned you from choosing and selecting who got to visit your art profile page by hiding your content from local users in your city who might promote you out of friendship or empathy.

I was worried I would not get sales and fall into debt and then this peace came over me so I think God was telling me not to worry.

What does it mean when God tells you not to worry?
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