How do people even exclusively pump untill 12 months?

Seriously this is the hardest thing ever MENTALLY. My baby nursed untill 4 months but unfortunately got use to a bottle and started to refuse breast and I tried everything! Even nipple shield. Baby is almost 7 months and I’m worn out. Sick of being glued to a pump tired of lack of sleep. I feel like I could just crash into my bed and sleep for days in a row. I feel so exhausted it’s crazy. I can’t keep up pumping so much. Its like I’m glued to the pump have no time to go out anywhere or do anything. I’m stuck at home 24/7. Wash pump parts and bottles what seems to be all day long. Idk if I can make it to 12 months. Should I try? I’m thinking stop at 8. Anyway to make it to 12 months and it not be this hard? Like how do ppl make it to 12 months exclusively pumping.