Sil rant

My SIL has her baby April 27th at 37 weeks, and the baby has a VSD. She’s constantly taking this baby everywhere and letting everyone all over her. She wraps her in fluffy baby blankets and lets her sleep in the bassinet like that. On top of all that, she lets her formula bottles sit out for 5 or so hours and still feeds it to her! Her pediatrician told her that she should be feeding her every 3-4 hours, but instead she just lets her wake up whenever she wants and feeds her then so the baby often goes 6 or so hours before eating! I’m not one to really judge but..... and she’s one of those people that “brag” about being a mom. The one that is posting selfies and pics 24/7, has to get her car and everything monogrammed to say mama bear, etc. Everything is always about her! She only got pregnant because I was pregnant with her little brothers baby. She’s always “one upping” him and us. We got pregnant, she got pregnant. We had a gender reveal, she gets married. Everything we do, she has to copy us or try to be better. And she’s sooooo extra!!! I’ve had 3 miscarriages. 3. She had 1. She was maybe 5/6 weeks along, when she went to the obgyn it was just a sac. When she passed the sac, she kept it and they made a grave memorial in the yard for it. They even did a 21 gun salute for it...... and she’s always calling her baby her rainbow baby. Everyone in the family just enables her and lets her get away with whatever. They baby her and it’s like the world revolves around her. Meanwhile, I barely have any family and they make it very obvious that her and her baby are more important than me and mine. Ugh.