I'm quitting and I feel so guilty 😥

I have been exclusively pumping for just shy of 3 months but I've decided that I'm going to stop. I have a stellar supply (10-12oz each time) so I feel guilty stopping. But My husband often works out of town Monday through Friday so I have little help managing the baby when I have to pump. I have 2 other kids who have extracurriculars and want time with me. My nights are 1 hour of bottle feeding followed by and hour to take care of all pump related things leaving me with maybe 4 hours of sleep at night. pumping is all I think about; when did I last pump, when do I need to pump again, should I pump before or after the 12/3year olds activity, will I need to bring my pump with me, can't run errands now because I have to pump in an hour, pump pump pump pump pump. I feel guilty for my reasons of stopping; the extra large supply HURTS, anxiety, nausea during pumping, no down time, no sleep, nipple pain, no me time, little free time with my other children....I'm suffering from PPA and the constant brain chatter about pumping is making the anxiety 5x worse. I'm trying to tell myself that my mental health isn't a selfish reason because it will be good for my whole family but, I still feel so guilty!