C25K get easier?

It really does get easier. My first week sounds a lot like yours, but I could barely make 45 seconds the first interval! Now I'm on week 5 and excited about week 6. I'm SOOOOOO slow, but I get it done, and that's what everyone is saying is important. Hoping to do an actual race in November, so still more training to do!

On the bras, I use Freya Active Sports Bra. Unfortunately it only seems to go up to 38H, but I find it effective (at 34GG). Best of luck in finding the one that works for you!