Improving on silence?

I think I talk to much. More specifically I say too much. People take me the wrong way. People ask for opinions and I give them. They are just that a thought on a snipet of information. I don't hold back and yea I can be wrong or I can be reacting to the underlying feel not the actual situation or thing. The between the lines energy that fills the air.

Two things come to mind one is a quote I heard, "don't speak unless you can improve upon silence" and the other is that at a certain point it no longer is about you, it is about what the person needs. It isn't invalid nor is it lying but it is showing a bit of yourself that most fits the needs of the person at the time. In this context it sounds manipulative and false, but in reality it is being the teacher and truly respecting the person and hearing the true question not the idle words that come out of someone's mouth. What are they really asking for? What really should be shared and what should be left to mature into a full thought and what should be just discarded without words?

Changing energy levels and growing spiritually I am finding that my old selfish ways where it is truly about what I think of everything isn't wrong but it is selfish and it helps no one, not even me most times.