Now isn't that grand? Seeing life underwater is one of the big reasons why people dive; and it helps alleviate the stressors and nervousness that we may feel prior to the dive (it's a distraction). I am happy that you had a great time!
Thought: As you continue to dive you'll see many types of equipment and configurations of that equipment, you may even get to try out different equipment prior to buying it. This is good as it give you new perspectives on something that you already have a base for. And, you'll have the opportunity to figure out what works for you.
I know that you'll continue to have some excellent dives, but there may be a time the dive doesn't go quite like you would have liked. Learn from those dives too so that the next dive will be just as grand as your first. Enjoy the experiences that come your way and happy diving