Is it normal to be afraid of your parents? I honestly don’t know anymore.

I recently started taking Zoloft and it makes it hard to get to sleep at night. I end up going to bed at 3am and sleeping until noon. Because I was asleep, I didn’t hear my dad yelling for me. When I finally woke up ten minutes later and rushed downstairs, he said, “Get out of my way. You and your brother, both lazy shits. You can rot for all I care. Get out.”

He knows my medication makes it tough to sleep. He knows I want to take melatonin to get to sleep normally. But he continues to call his depressed child lazy and useless. My mother was never terribly good to me, but she never made me feel like I was disposable.
I can’t help but tremble when I’m around him. I’m constantly afraid. I’m stuck.