I have felt like this so many times. All I can say is that you have to keep trying. If you can find a trans support group IRL, that can make a huge difference.
The people here care about you. Keep coming here, and you might start becoming attached to us.
Do you have a regular doctor or a therapist? When you're this depressed, it's good to consult with a medical professional or a counselor. Call a suicide hotline to hear a real human voice--that's often better than written messages.
When you set goals for yourself, set the smallest goal possible that will make you feel like you did something useful. Wash one mug. Make your bed. Feed the cat. Anything. Heck, I used to count making the coffee, e-mailing a friend, and programming the DVR.
I never thought I would make it this far. I just couldn't visualize it, and I wasn't sure I would live this long. But I did. You can, too, but you have to hang in there.
HUGS, buddy.