It sounds like you are fighting major burnout. If you can't afford to take a week or two completely off from turking to recharge just try to create mini goals in your mind for perspective. Tell yourself that you just need to make $2.50, take a little break for a while, come back and do that again. Suddenly you discover that if you do this four or five times in the morning you are already over $10. Then it builds from there.
It's easy to lose your confidence and get frustrated at this shit. It's extremely important to give yourself realistic, simple objectives and try to put out of your mind all the money you really need to make - otherwise you will de-motivate yourself again.
If you think "whoopty shit. I made $3 and I need to make $300 to pay a bill" it will completely overwhelm you.
If you think "I made $10 today. If I make $10 every day of the month that is $300."
Baby steps add up to big things. You can do this. Just climb back on when you fall down.