A quote from Lewis's "That Hideous Strength" comes to mind:
"You do not fail in obedience through lack of love, but you have lost love because you never attempted obedience."
As was mentioned earlier, if you want to know peace inwardly, your feelings must come in alignment with the Truth, not the other way around. They get this way through the practice of obedience, regardless of how you feel. In time, your feelings will be transformed, and then the hard discipline of self-denial becomes the easy thing, because it is truly what you desire to do.
You believe that your feelings will never change and will always be in conflict with what is right. This is not true. If you willingly sacrifice those feelings -- trading in your tired, worn out notions for the true ones from Christ which are undying and incorruptible -- they will be returned to you much improved. This is the "Great Exchange" of the Kingdom. It's simply the way it works.
We get into trouble when we do not want to give up our feelings. Like a petulant child, we cling to them because we do not trust there is anything better. Lewis is again helpful (from "Weight of Glory"):
“It would seem that Our Lord finds our desires not too strong, but too weak. We are half-hearted creatures, fooling about with drink and sex and ambition when infinite joy is offered us, like an ignorant child who wants to go on making mud pies in a slum because he cannot imagine what is meant by the offer of a holiday at the sea. We are far too easily pleased.”
As for why your feelings are in the state they are currently -- well, that is where the whole notion of sin and the fallen state of the world comes in. A topic for another time, perhaps.