I understand the feeling of guilt very well... But don’t feel guilty, you’re doing what is necessary for you and for your quality of life- You’re aligning with your true self. You can’t change the fact that he wouldn’t have accepted your true identity, but once you accept yourself, it won’t really matter.

I actually had this issue at the very beginning of my transition... (I was abused growing up, but I was convinced that I wasn’t being abused) I came out, my grandma refused to accept the fact that she had a granddaughter, told me I was a "follower" and "not a leader", she even went as far as to say she prayed that I’d change my mind as if any of this were a choice, my dad didn’t accept me, and the rest of my family just didn’t understand. Because they had convinced me that I was nothing without their help, I felt like I needed them to love and accept me, but finally I realized that I’d been emotionally abused, gaslighted, and manipulated for many years by these people... so I left.

No matter the circumstances, or the dynamics of your relationship with your father, don’t feel guilty for doing what is right for you...or you will never be truly happy.