I voted Sloth & Pride. I always feel as though I never do enough to help other people, and I often feel guilty when I relax, because there's always something helpful or productive that I could be doing instead.
And Pride. . . I try to be humble, really, that is one of the virtues I value the most, but I worry too much about what other people think of me, and that definitely is an aspect of that sin.
But, as with all humans, I'm guilty of all seven and the multitude of sins that fall into their categories in some way.