Breast pumps

Hello ladies I need advise please, I am starting to really struggle with my current breasts pumps I have the KissBoBo hands free pumps and each time I am pumping they really hurt my breasts I am a size 40GG and sized up the nipple guards and still super painful I have even tried using an ice pack on my nipples prior to pumping and also tried using the nipple scream prior to pumping and it leaves a really sore ring around my nipples from where the pumps been sitting, my larger chested ladies what pumps are you all using please and are they comfortable? Also thank you in advance