There's nothing wrong with you - your conscience is working at 100% by the sound of things.
That's why God gave us all the conscience, so that we would feel guilty about our sinfulness and wrong thinking and go to Him to ask for forgiveness and get help not to repeat our sins.
The only way to be made into a better human being and stop doing the bad things we have done and stop feeling so bad about them too, is to ask Jesus to forgive us, ask Him to change us INSIDE and start to follow Him in our lives. Read the Bible because in there, you will see HOW to love your enemies, bless those who hurt you, pray for and be kind to those who persecute you and abuse you for being a Christian (Matthew 5:44) and you will also see other instructions in God's Word which God will help you to follow and obey by His Spirit, so that He CAN change you and make you ito a better person.
We can never change ourselves, but when you become a Christian, all of a sudden you realize that you are not swearing any longer, no longer doing bad or sinful things, in fact, you don't even want to do bad things any more.
It's a great release to have a lighter attitude and want the best for all of mankind, instead of being selfish and having a desire to climb over everyone else to reach your goals in life, no matter who you hurt along the way.
If you do hurt anyone, you will feel those pangs of conscience and God will help you if you confess to Him, by forgiving you (thereby taking away the burden of sin) and helping you to apologize to the other person and in future not take those bad paths to sin.
So don't despair - there's nothing wrong with you - as I said, your conscience is still working fine.
However, if you should ignore it too many times and not go to the Lord for help not to repeat your sins in the future and carry on with your old life of wickedness, your conscience WILL one day become seared and then it will be too late to ask God to change you because by then you will be a hardened case, a nut too hard to crack