Back to work troubles

So I went back to work this week 8 wks postpartum. We’re already having to use a supplement. I feel like I have failed my baby. I’m trying to pump 3x a day at work but I’m so busy sometimes I only get 2x. So I’m not pumping enough and my lo burned through the freezer stash like it was nothing bc I’m only getting about 12 oz total during the day. I’m so worried I’m going to have to stop bf sooner bc of working. And it doesn’t help that I feel super hormonal today...I’ve just felt like crying all day.