There are plenty of sins I honestly do not feel guilty for. I know it is wrong. I will try not to do them again. The whole forgiveness thing is hard to understand. Truly loving your enemies. I usually force myself to pray for them, even though, deep down I wish them harm. I am not Jesus. It is hard for me to imagine Jesus truly loved his enemies. He truly did not judge people’s sins. He truly rose from the dead.
You hate someone - you pray for them - you dislike them a lot - you pray for them - you dislike them still - you pray for them - you start to feel for them - your prayers heal your wounds too.
You know your sins are wrong, and you try not to do them again . . . IMO, that makes your confessions valid. None of the rest of us are Jesus, either.
The phrase “feeling of guilt” is s synonym for contrite. Do you mean you do not have proper contrition, which is necessary for absolution?
**Catechism ** 1451 Among the penitent’s acts contrition occupies first place. Contrition is "sorrow of the soul and detestation for the sin committed, together with the resolution not to sin again."50
1452 When it arises from a love by which God is loved above all else, contrition is called “perfect” (contrition of charity). Such contrition remits venial sins; it also obtains forgiveness of mortal sins if it includes the firm resolution to have recourse to sacramental confession as soon as possible.51
1453 The contrition called “imperfect” (or “attrition”) is also a gift of God, a prompting of the Holy Spirit. It is born of the consideration of sin’s ugliness or the fear of eternal damnation and the other penalties threatening the sinner (contrition of fear). Such a stirring of conscience can initiate an interior process which, under the prompting of grace, will be brought to completion by sacramental absolution. By itself however, imperfect contrition cannot obtain the forgiveness of grave sins, but it disposes one to obtain forgiveness in the sacrament of Penance.52