Anyone else out there feel hopeless??

I am a female in my twenties and can't go through a single day in my life without feeling like a waste of space. I have a job (though I still live at home with my parents), but all I feel like is a failure. I often think to myself "Whats the point of me being here, I am terrible at everything and lack pretty much everything that is required in life to succeed!!".. I have never truly been good at anything and what usually comes soo simply to others takes me ages to grasp. I am afraid to express or say what I want to say and bring my point across because I don't want to be judged or looked down upon. I consider myself to be stupid and everyday I experience a blonde moment (usually more than one) I feel alone and unaccepted in the world. Everyone else seems to be succeeding and flourishing in their lives, all I seem to be doing is going further and further down the gutter. Life is soo unfair, I am an outcast with nothing to offer... Can anyone relate (even in the slightest of ways)???