Anyone giving up or stopped breastfeeding by 4 months?

I have been exclusively bf until I went back to work at 8weeks. I was doing ok pumping then feeding her all weekend and after 4 when I get home. I'm really tired I have no full help. I get home bf her cook , clean and two feed dogs. I once in a blue take a nap after work. My electric pumps motor stopped. I have a hand held that's so hard to do . I don't get much out in a fast time. At my job boss gives me time but it takes long to pump at least two ounces.  I used to pump every time I could and I'd get milk to store.  But I've pumped once a day everyday and didn't pump two days in a row at work   😩 I feel guilty giving up.  My milk is getting less. Can I go back to pumping every hour to build it back? I'm so tired