I feel that, too. I lost a Golden Comet (a production bird), but the most recent was a Welsummer. Now I have a sluggish Orpington and a Welsh Harlequin duck with internal laying.Hopefully everything does get better.
This hen was about 5 years old we got from TSC, that's pretty good for her, especially for a Leghorn from there. I am never going to get any production breeds again. I got 2 other Leghorns and 3 ISA browns along with her, ALL of the ISA browns got sick and died. One leghorn got sick and died and the other one got killed by a dog.