I understand what you're saying but my diagnosis made me feel so much better about myself.
I had always felt that there was something wrong with me, that I was 'wrong' for not enjoying social occasions, and that I had to have a couple of drinks in order to be relaxed enough, even with family.
I wondered how other people could manage to work all day and still be awake enough in the evening to cook, exercise, socialise or even just watch TV.
I wondered why I am so terrible at keeping friends, why I actually have no friends at all from school, university, or previous jobs. Why I have only been to weddings of family members, never been to a hen do or been a bridesmaid. Why I have never had or been a best friend to anyone.
I felt a bit embarrassed about all the little things I did to cope, like rehearsing what I was going to say to people, make endless lists, have routines that I had to stick to, look up images and maps of new places online before going, etc.
So being diagnosed made all that make sense. I am very good at masking with other people, but this leaves me utterly exhausted. I need to go straight to bed when I get home from work. It also made sense of the fact that I used to drink too much when younger in order to cope with nights out. With hindsight I know that I didn't have to go out, but I thought that it was just what everyone did.
And ultimately, I am not a bad person, a horrible, unkind person, a bad friend, bad daughter etc, it's just that my brain works in a different way to other people.
I have been able to forgive myself, and actually feel sympathy for the younger me.