Opinions on breastfeeding

Hello
My neighbors are really open people and they wanted to talk to me about breastfeeding. They were concerned I won't be able to breastfeed because my boobs aren't growing to be enormous and leaking colostrum. They told me I need to have my boyfriend suck on my boobs to get it going but I'm not gonna do that to him. I'm not leaking but I'm getting a lot of white crusties in my nipples and they grew a cup size. Im wondering whether this is true or bull? I'm only 36 weeks I haven't gave birth yet.