I'm sorry you are having such a difficult time. It's been many years since I was in your situation. But I can recall having similar feelings way back then. I think there is a sense in which the kind of thoughts & feelings you have regarding your parents are more-or-less normal rebellion. You see how your parents have lived their lives & you want something different for yourself. However, up to now, you've been living in their home & "under their thumbs", so to speak. So you've had to put up it simply because there was really no alternative. Once you can get out on your own, while your distaste for how your parents live may not subside, your preoccupation with it likely will because you'll be away from them & living your own life.

You mentioned feeling as though you don't enjoy things you used to like as much. This may suggest that you are struggling with some depression too. No longer taking pleasure in things one used to enjoy & feeling sort-of numb are, I believe, pretty-much classic symptoms of depression. Here again, once you can get out on your own & start living your own life, you may find this depression lifts of its own accord. However if not you may want to seek the services of a counselor or mental health therapist with whom you can delve into how you are feeling about yourself in particular & your family in general.

Here are links to some articles, from PsychCentral's archives, on the subject of what to do when you feel lost & empty, plus one that describes the symptoms of teen depression, & one that offers tips on dealing with difficult family members:

When You Feel Lost

When You Feel Lost or Disconnected from Yourself | Weightless

Feeling Lost in Life: A Learning Opportunity

So, You're Lost? The Advice You'd Never Expect

Teen Depression Symptoms

https://psychcentral.com/blog/how-to...amily-members/

https://psychcentral.com/blog/when-y...dium=popular17