If you have trouble loving the people around you, then you actually have a problem with your love for God. You can't love God and hate your brother.
Don't worry if your current lack of love comes to mind — places you harbor bitterness, don't hold your tongue, withhold beautiful words when you shouldn't. We all do it. We all have these places.
The antidote is found in our relationship with God. As we get around Love, the person, our love for people will grow, our patience will grow, our perspective will be larger than what is right and wrong, or who owes who.