TL;DR at bottom

Just as a disclaimer, I am old enough to see a therapist myself. I am 21, but while I may be that age, I cannot drive because of a disability. I can physically move, but it's my motor and cognition and stuff that make it hard to drive. 

Yes, I know it seems lazy of me that I am still living at home with my mom, but I do what I can to get myself money. I have a job, and my mom drives me there where I work Saturdays and Sundays. While she is willing to drive me, which I thank her for, I know she still isn't the nicest person. 

I suspect to show signs of depression, as I feel nothing most of the time (not happiness nor sadness), lay in bed for hours after waking up, rarely eat every day, never go out and socialize, never do things I used to always love doing, "smiling" during the day and crying at night, you know...that stuff. I won't go into detail, but I had depression, as well as s* thoughts when I was a kid thanks to many things I dealt with, but it seemed to go away during my teen years. It looks like it may be back, though. 

But I know my mom is one of those people who would always deny I'm mentally ill, despite supporting me when I struggled with an illness as a child. I remember even trying to have a civil discussion with her about it, but she dismissed it as me being someone "just looking for attention and compliments." 

Not to mention that I can't find the motivation to do small things like chores and stuff, and I'm always criticized for being "lazy." Being called words like that just puts more strain on my mental health and makes me feel like it's my fault for being the way I am. 

Because of this stuff, I always thought about just leaving home, though I have nowhere to go and not enough money at the moment to live somewhere. But I mainly worry more about getting better mentally and wanting to see someone. 

However, it's at that point where I just don't want to say anything to her, hitch a ride with Uber or something, and go see a therapist without her knowing. It may be a bad idea, but it's all I can think of at this point. The only thing I'm worried about is her questioning where I'm going and having her think she could talk down to me and tell me that I can't go see a therapist because "nothing is wrong with me" or something like that. 

What am I supposed to do? As I said, I have no one else to go to--no friends, no other supportive family members, nothing. I am tired of struggling and want to be free again for once.

TL;DR: Stuck at home with a mom who thinks I'm not mentally ill, and I want to see a therapist on my own so bad.