Breastfeeding advice

So I’m only 21 weeks pregnant but I want all the advice and information I can get by the time baby boy arrives. This will be my second baby. With my daughter I breastfed for a total of maybe a month all the while supplementing with formula. She never really took to me and to be honest I didn’t try hard enough. I don’t have my mom around or anyone one else besides my fiancé to help and he has no idea what to do or advice to give lol. I freaked out that she wasn’t getting enough milk and gave up way too soon. This time around I want to try harder and actually breastfeed longer this time. I was already disappointed in myself for giving up so easy. I was young and scared.

So moral of this story, is there any advice breastfeeding mommas can give me? Books to read? Things I should buy ahead of time? I’m honestly new at this even though this is my second baby. All the help is very much appreciated!