There's a Difference

Sometimes I feel worthless, and sometimes I feel useless. And sometimes I feel them both. But they are not one in the same.

Worthless - A feeling I get when I don't care much for myself. This is my typical state of mind, and how I see myself in the world in the first place.

Useless - A feeling I get when I either can't do something I'm trying to do, or I try to do something and I fail miserably. This includes attempting to cheer someone up.

When I feel useless, it adds to the fire of my feeling worthless. But when I feel worthless, I don't always feel useless, and my feeling of worthlessness never feeds my feeling of uselessness.

Currently, I feel rather worthless (in my own eyes) and useless.