Need advice, input!!!

Hello ladies, so I just wanted some input and advice from other mothers who breastfeed!! I have two daughters I didn't breastfeed it hurt and then I had to go back to work and gave up... This time I TRULY want to breastfeed! I just need to know how do you do it(continue)? Does everyone hurt, get cracked nipples etc. I produce ALOT of milk and I just want to really do it this time around for the benefits and everything. I plan on ebf but will introduce the bottle so that my fiancé can have some time also. Please tell me the good and bad of the breastfeeding. What you suggest to help or anything!!.   TIA!!