Question for breastfeeding mamas

Allyson • Wife and mama to one girl (3) 💕
I'm a FTM (15w3d) and I have a question for all mamas that have breastfed. I have always wanted to breastfeed and now that I'm pregnant, it's even more of a "high priority" for me when my baby comes. I'm extremely determined to do it exclusively. Almost every woman I've talked to or read stories about say how hard it is, especially in the beginning. My question is this: what about it is the hardest part? Is it getting a good latch that's frustrating? Is it the pain (or uncomfortableness) at first? Is it because it's so demanding on you? Or all of the above??? 😆 I'm genuinely interested in knowing as much about the struggle as possible because I want to better prepare myself for it. Any input would be appreciated! TIA!