“Is Trinity a ‘happy’ church or a gloomy ‘Thou Shalt Not’ type of church?”

There are, of course, some things we would prefer not to do.
Like cheating, stealing, lying, gossiping etc etc.
We believe that the way to stop doing things we don’t want to do, and start doing the things we want to do, is not by shaking our finger or preaching hell and damnation.
The change of heart we are all looking for comes when we know God’s grace and love for us.
That’s what we talk about with each other.
We believe that makes us a happy church.