Yes you can feel like you are worthless, and with practice you can start to feel better about yourself. I have been told all my life that I was worthless, stupid, lazy, a moron etc. Now at the age of almost 50 I finally found myself and know that I am NOT Stupid, a stupid person does not make the dean's list 3 out of 4 semesters. I am not lazy, I am not worthless. You are only as worthless as you feel, today I don't feel worthless at all.
Everyday I thank God for letting me wake and ask for his guidance in my life, and at night I thank him for everything he has done for me and for letting me do.
It took therapy, and some great friends to let me see what I am worth and how much others really appreciate the things I do everyday. Someday you will see the same things I have.
Addicts have to feel better about themselves so they put others down. Clean, sober people do the same things. Take steps everyday to make you feel better. Repeat the saying I am worth it and do it for you.
Prayers coming to you