I find I am still somewhat concerned to repent correctly, lest our Lord find it less than sincere or complete.
Anne,
Although the desire here is certainly admirable, I would caution you against a common tendency among us, and that is to rely on the perceived sincerity of our repentance for salvation rather than on Christ.
A personal story...
I remember what I think was the first time I heard (or at least grasped) the gospel. I was around 21 or 22 years old (so not that long ago, actually), finishing up college, and attending a local PCA congregation. In a sermon I heard one Lord's Day morning, in a sermon on repentance, the pastor was admonishing those of us who were constantly stressed and worried about whether or not our repentance was sincere enough. He told us that this, in essence, is a sort of works-righteousness because we are focused on
ourselves for assurance rather than on
Christ and
his work and promises. I remember feeling like I had a ton of cinder blocks lifted off my shoulders; it was the most liberating thing I believe I've ever heard in my life.
Now, this does not mean there is no place for introspection. Am I living a godly life? Do I truly love God? Do I really hate my sin? Am I sincerely repentant for it? Yes, there is a place for that. But when these question become an internal and naval-gazing obsession, taking our gaze away from Christ, they become a problem. The law first points to us, condemning us,
but with the end that we might be pointed to Christ.
So, I would encourage you not to focus on whether you think your repentance is genuine. After all, what's the standard? Is it how you feel? Given Jeremiah 17:9, that is a very shaky rule by which to measure. Rather, look to and focus on Christ.