my relationship is falling apart 😞

Right before my eyes and I don't know what to do anymore. My boyfriend works full time & goes to school full time, so he's always exhausted and stressed and grouchy. Meanwhile I've got horrible anxiety and I'm still looking for a steady job and I'm enrolling back in school, so I'm stressed and grouchy for my own reasons. We fight nonstop. He thinks I nag him too much, and I don't like the way he talks to me sometimes and how little affection I get from him anymore. We're stuck in this awful spot because we're both making each other miserable but we're so attached to each other that we won't end things. I don't know what to do 😞