Hi Seth!
So sorry to hear you are in a situation which to you, seems as if there is no way out, and you probably feel stuck. I have an idea of what you are feeling because I too have felt that way before with certain people in my life, whom I physically had to be around more than I wanted. What helps me when I start feeling this way is to remember a couple things. One, it’s okay that you don’t like him. That doesn’t make you a bad person, if that has at all crossed your mind. I know I can sometimes get into that mindset, thinking similar thoughts.
Try to remember that everything is ENERGY and more than likely your energy and soul aren’t vibe’n with his. And that’s ok. The more you fight it and focus on the fact that you hate begin around him, the more intensified it’s going to get bc you’re putting all of your mental energy into it. So try and catch your negative thoughts about him, and refocus them onto something else, more positive.
I also remember that every person and situation in our life is a lesson for us to learn. He is one of your most important teachers at this time. The hardest situations in our life are the the biggest lessons our soul needs to learn. Try to keep in mind that every single person on earth is doing the BEST they can at their current consciousness level. You never know what is going on within a person to make them act out, etc.
If you have trouble seeing your dad in a loving light, a good exercise is to focus on something that makes your heart feel warm, whether it be another person, a pet, a project, a place, anything. Focus on that feeling of love and caring. Then, once you’re sitting with that feeling, bring your dad into your mind. And see your dad, whilst mentally sending him that love from your heart to his heart. You can even do this when he is around, even while he is being a jerk, etc. Mentally send him love. Honestly, he is making you a more loving and forgiving person. Like I said, he is your greatest teacher. But whatever you do, go easy on yourself and even if you have 1 time during the day where you held love in your heart for him, even for a second, that is a huge accomplishment.
I’m not sure if you know who Pema Chodron is, but her books are amazing and extremely helpful. Here’s a link to her books and audio books http://www.shambhala.com/authors/a-f-1/pema-chodron.html and see if any resonate with you. Every single one I have ever read has helped me immensely…that and getting into meditation, which may help you too. Take care, take a deep breath and be easy on yourself~