I feel like a milking cow, I'm tired of milking, what the hell is so f…

I feel like a milking cow, I'm tired of milking, what the hell is so full up quickly ? It seems like I just eased the situation, and again you feel the heaviness, you start "milking" yourself, but there are already lumps, splashes everywhere ? why wasn't there so much milk at the beginning... it will last long, who knows?