Yeah, I wouldn’t say it’s a big deal. As a convert of a few years, I can say that confession seems to both stay the same and get easier over time. I never feel altogether… thrilled to have to sit down and confess all of these nasty things I’ve done, but in some way I do feel more used to it, or more as though it’s “business” than I used to.
What matters is that you confess your sins thoroughly and honestly. We can not really ever control our feelings, as you may have heard. That’s actually some of the advice that is often given about confession and sin. A brief flash of anger, for example, is somewhat beyond our control. What matters is how one deasl with it: does he approve of the feeling and act on it, or dissaprove of it and try to ignore or do away with it?
So in many ways, your feelings of shame or nervousness may be contributing more greatly to you sanctification and more pleasing to Jesus than if you lacked them. I often tell people a little parable of sorts when discussing whether or not praying when a person doesn’t really feel like it is good or not. (For example, many of my Protestant friends believe that it’s wrong to pray when you don’t feel like it, because it is going through the motions, not as heartfelt, or rote).
There were two mothers. One really enjoyed the things of motherhood. She found no end to the joy she got in feeding her boy, cleaning him, bathing him, dressing him, and any number of other things. The other was a bit more normal, perhaps, in that she certainly enjoyed caring for her child at times, but at other times really would rather not have to feed him, bathe him, and do all the work necessary to put him to bed at night. Now one night, it was time for the kids to go to sleep. The first mother very excitedly and happily went about preparing dinner, bathing him, reading him a bedtime story, and tucking him in. The second was very tired that night, and wanted very much to relax. However, knowing that her boy needed caring for, she prepared him a meal, gave him a bath, read him a story, and tucked him in, all with a smile.
Now which mother showed more love for her son that night? Obviously, it can be a bit subjective because we don’t know the hearts of each, and this is certainly not to say that the first mother was lacking any love for her child, but in a certain sense, we can really say that the second mother showed more love that night in that she did all that the child needed, smiling and making him feel cared for all the way, despite feeling as though this were all the last sort of things she would like to be doing.
In the same way, when you are ashamed or nervous in confession and through and in spite of that you honestly and humbly confess your sins, there is something a little extra there, something perhaps more pleasing to God, at least in a special way, then perhaps a confession another makes when he has an easy time with it. You are suffering in order to do what the Lord has asked you to and you do it anyways, and there is something special about that.