This sounds really difficult for you and i understand how you're feeling. Have you thought about going to the gp or hv for some support? Just to reassure you, my baby got rsv a few weeks ago, he has an older sister who brings home all of the germs! It developed into bronchiolitis and he wasn't very well but he got better and is fine now! Babies need to get ill to build up their immune systems and catching viruses is part of life.
I get it’s easier said than done but you can’t live your life worrying - you can’t shelter your baby forever and they could get any illness that’s not even contagious and there’s nothing we could really do about it! Take baby out but just be careful! They’re gonna get colds etc which is good to build their immune systems!
I am worried about rsv! However I am Taking my baby out and taking her to classes, she enjoys them and it helps her development. It’s about managing and balancing risk