When people seek pleasure in anything, some preachers will find sin in that. I mentioned once that I take pride in what I do, and I enjoy doing it... I was told that pride and that enjoyment is a sin.
We all know the word "pride" contains both positive and negative connotations. This is an 'arguing from semantics' fallacy, conflating different 21st century english meanings of "pride" in the same usage to suit a (false) argument.
The Hebrew Old Testament and Greek New Testament had very different words for proper self-respect vs. arrogance, selfishness and self-serving behavior.
You need to stop listening to that person then. Enjoyment isn’t a sin. That person is also using pride in the wrong way.