Family issues / Jealousy

How do you handle (I guess jealousy?) I am honestly struggling. My sister in law is in labor and everything is progressing beautifully. I had two scary emergency c sections with my children and I can’t help but grieve the birthing experience I didn’t get. I’ve been an anxious mess over it all day. Also - they’re the favorites of the family (or so it seems) so I know that everything is about to change and fear my kids getting the back burner. (One of mine isn’t even a year old yet) Thanks for positive advice!