I think the changes you have made are completely normal. When we're young we don't always think things through as deeply. I'm a very deep thinker now and only really talk when I have something important to say. The last few years have made that happen even more, just as the last few years of your life. The advantages is you can see outcomes better, but you can also see potential pitfalls in almost everything.

Less conversation isn't bad, it just means what you're conveying is of more substance!