Restarting stash 😢

Courtnie • 28. Happily married. I'm a mom of Angel baby boy👼, a rainbow baby girl🌈, and my surprise pot of gold baby boy 🍀
So I found mold on my breast pump, like the rubber part where the milk comes out of😷, so I had to throw everything away. I thought I was cleaning everything very well. I'm so devastated. Mainly because I could have seriously hurt my baby, but also all that milk. Any tips on how to get my stash back up?? I am working full time which doesn't make things any easier.