I am sooo iritated

I have always been an exclusive pumper and now I can't empty my breasts without sitting hooked up to my pump for at least an hour. I look down every time after about 15 minutes and there's just a few drops on the right and maybe half an ounce on the left. I end up with maybe 5 max 6 ounces after an entire hour on high setting, whereas I used to get that much in 3p minutes on low to medium. I am so pissed even as I write this! As ANY exclusive pumper knows, our pumping time needs to be as short as possible.