Some comfort has come to me when reading from the church fathers. Jerome, the fourth century theologian and church leader, wrote a very long treatise just explaining how difficult it is to life a good life - even as a believer. Augustine's writings are full of compassion for those who do not live perfectly, for example, Augustine, in The City of God, says that suicide is a terrible option that dishonors God. However, he first encourages us to be forgiving, because a person who takes their life does so under excruciating circumstances and their decision is understandable, albeit regrettable to us. (Which is why we don't condemn those who have committed suicide, but we do mourn their loss.) These great leaders of the church understood that virtue wasn't easy and didn't expect anyone, especially themselves, to be perfect.
So, until I master virtue, I will continue to volunteer at my church. I will do my very best to show love to my neighbors and to give to those in need. Virtue escapes us, and that is something I am just going to have to live with. But while I'm waiting to get this whole "Christian" thing figured out, I will do my best to honor God and, in doing so, maybe some people will be able to remember me for being more than a grumpy introvert.