Ultimately, you should quit entirely. But at the very least, try to wean yourself off this habit from 2-3 times down to 1-2. Then eventually, just don't do it. It really is garbage food. I know you're busy with your family but if you can meal prep on a Sunday you could knock out lunches for 3-4 days. Healthy food can still taste good too, especially adding things like hot sauce and seasonings. Your body will thank you!