Why Don't You Tell Me What You Really Feel?

I try to be an honest person. But sometimes I find myself in a quandary. Which is better?

1. being honest and saying and doing all the bad things that you feel, or
2. being dishonest and saying and doing all the good things you don't feel?

In other words, is it being hypocritical or is it just old fashioned self-control to do or say the right thing when you feel like doing or saying the wrong thing?

The Bible says, "For out of the abundance of the heart the mouth speaks." Or to put it in a more modern translation, "For the mouth speaks what the heart is full of." If that is true, maybe my attempts to "do right even if I don't feel like it" aren't even possible. The evil in my heart will come out even if I try to stop it.

Obviously, the ideal situation is to have a perfect, sinless heart. Then one would always be assured that their words and their actions were good, right, and sinless.

Is that ever going to happen?