The difference between being happy and being content sounds minimal, but it’s sizable. Happiness is a moment whereas content is a state. It’s similar to tranquility, but with what you have, who you are, and your reason of living life.
Most people get enjoyment and are happy for a quick short moment, but are rarely content in life. I don’t mean you have to be content all the time — you do you. But working to reach this state of life and staying in there should be a lifetime goal. You will begin enjoying yourself, if you don’t already do, and your surrounding will most likely appreciate that and the energy you transmit.