Breastfeeding Help!!!!

I'm a first time mom, and I have no idea about breastfeeding! How do you ladies storage your milk??? Can you put it in the cooler and microwave??? I'm 2 weeks postpartum and my milk is always leaking I pumped every 3-4 hours. I tried to put my baby's so I can't latched them but they just suck 2 times and stop 😒 I just need help!!! 😭😭😭😭 I want to know everything about breastfeeding