Is it A Sin To Worry?. Part.1

 In the world we live in at the moment everyone is experiencing some type of anxiety of some sort.
When I was young in the Lord someone told me that worrying was a sin.
I was shocked that they would say that to me. Why would God consider it a sin against Him to worry about things?
It compounds the situation. First I am worried about something and then I am worried that I have sinned against God.
Seems endless doesn’t it?