First of all, I don’t think that you are exceptionally bad or anything. I just think that the Sacrament of Reconciliation is underused by many people. I would suggest that several factors might be at play there. One, many people aren’t aware that they aren’t supposed to receive the Eucharist in a state of mortal sin or don’t know what a mortal sin is, so those people go up without going to confession. Two, confession is normally offered a few hours a week–often before or after Mass–rather than during Mass, so going to confession requires an extra effort, while the Eucharist is a part of Mass, so most people, if they attend Mass, naturally end up taking the Eucharist. Finally, I would say that many people feel anxious about confession, but don’t feel uneasy about the Eucharist, and so will receive the Eucharist but might only go to confession once or twice a year (or even less). That’s just my speculation, though.