I worry I'm so messed up

This will be a long post so please bear with me.

Here's my entire situation: I'm in community college and keep missing my classes, I'm not submitting my assignments on time and am getting bad scores, I'm still living with my parents at age 23, it feels like I can't think straight and my mind seems foggy, I haven't brushed my teeth in a while because I'm lazy, I don't have any set goals and ambitions, I feel impatient whenever I read, I worry other people my age are making progress while I fall behind, I only have a half-job as a DoorDash driver, I keep feeling the urge to smoke marijuana every day, I masturbate often, I graduated high school years ago, I don't have any friends or a girlfriend, I haven't spoken with my therapist in a while, I spend a lot of time on my computer doing things other than important stuff, I often make excuses when my parents question me, it's hard for me to break away from foods like cheese, peanut butter, and anything sweet, I don't exercise except walking my dog, I'm overweight, and I keep getting up in the afternoon instead of earlier. I worry I'm doing so many things wrong that I'm a loser and incapable of improving. I feel like I need serious help. What do you guys think of all this?