I am sorry you are feeling so bad, but glad you are feeling a bit better after the coffee shop. The combo of getting out, being around people, and drinking coffee often lifts me out of a low mood (unless I am in a mood where coffee makes me super irritable and anxious haha). Really hope you continue to feel better, and you are definitely NOT useless! That is a lie your brain is telling you. I understand as I have felt completely worthless myself at times.