No you aren't, if you were stupid you'd be a pile of goo on the floor that makes noises, you can do more than that so you aren't stupid, and useless is definitely a no bc if you were useless you wouldn't have so many people loving you right now, you aren't useless or stupid, stop telling yourself that
Dude, it's fine, don't apologize cause you don't need to, you shouldn't stay awake tonight, we can do this another time, it's fine
(Remember that you aren't stupid and you aren't useless)