Breastfeeding equals depression?

I’m 32 weeks pregnant and I plan on breastfeeding, and everyone jumps to the opportunity to tell me how it will make me depressed and tired and really drain me, I understand that a lot of women go through that, but i wondered if any woman thrived from it? And it made the opposite effect. Has anyone who breastfed experienced happy hormones instead of depression and exhaustion?

EDIT: thank you all for replying and sharing your experiences! I’m reading each and every one and it’s definitely made me feel optimistic towards breastfeeding, hopefully I will also have a good experience.