She's just had a baby - cut her some slack.
And she's being proud of getting through her labour in the way she clearly wanted.
It's not like she's muscled in on someone else's labour and said "here, get out of the way, this is how you do it" and then posted "proud of myself for sorting out Mary's labour for her. Go me!"
Everyone's labour is different - and everyone has a right to feel proud of themselves for getting through it in whatever way they do. It's a pretty overwhelming experience.
I ideally wanted a drug-free birth - not because of competitiveness, but because I, in my personal opinion, based on the things I'd read, believed it was the best thing for my baby and my body. Others might feel different. As it happened, it turned out that I produce babies at great speed. I had a very short, very intense labour. There was a point when I was thinking "I wonder if I can persuade someone to kill me right now" because I'd been told that there was no way I was progressing as fast as I was claiming, and they thought I still had several hours to go.
I got through it because it had to be got through. If it really had gone on any longer, I might well have ditched the no-drugs idea, I don't know. As it was, I got the drug-free labour I wanted. I am aware I was lucky, but I was still proud of myself, because I was the one inside my head, and I knew what an intense experience it was and I was proud of myself for not completely flipping out and punching anyone within punching distance, which was a distinct danger at one point. I felt I had, within the context of my own, personal experience, managed the labour fairly well.
That isn't a reflection on anyone else who had a longer labour, or a more painful labour or an unco-operative baby, or anything else. I might not have continued to cope if it had gone on longer or got any worse. Plenty of other people, if dumped in the middle of my labour, might have been able to cope better.
Me being proud of myself after my labour isn't a criticism of anyone else. It's just me knowing that I came through a difficult and lifechanging experience in the fashion I had wanted to.