((((Distressed))))
I can relate TOO much to the frustration and pain of how abusive a parent can be while physically sick. Can still argue and cuss and look down on you so hard. Yet so feeble and in pain themselves. And sometimes its like "Thats right! Karma is great!" But theres also all the guilt and shame and judgement...

I think what Sannah is referring to is focusing on you now. In the past we were young and small. Our parents were big and in control. They were right. We were wrong. This went on for years in too many ways. Including favouritism, making you feel worthless compared to your siblings. But enough is enough. Yes, you are taking care of you dad because he is sicker now. But what else are you doing in your life for you? Its a hard question i struggle with too. This struggle is worked on in school, and journaling, and in T to focus on strengths and talents and qualities. Its a LONG struggle because our focus has been on every thing and one else around us that seem to be more important. Try starting small = a half hour of downtime? Savour the time with you - writting, doing hw, running errands outside the house and all the stress. Appreciate a few positives at that time = that you can walk, that you are good at..., those blessings from God like the ability to breathe and enjoy the sunshine... This work on you can help to see how you are valuable - not just extra arms that your family needs around the house. That value can include boundaries of what you will allow from others towards you.