Ditto previous advice, particularly Lansinoh, skin-to-skin and the Kate Evans book.
Know that while breastfeeding is the most natural thing in the world, it is still a skill which needs to be learned by both you and your baby - you may find it hard work at times, but persevere and you'll be happy knowing you really are giving your baby the best start.
Don't give yourself a hard time if you hit a tough patch, be good to yourself, get help and keep going!
And lastly, enjoy it! Your baby's face while they feed is just the sweetest thing, you can feel them calm and happy in your arms, and savour the time you spend feeding; it's a small investment timewise in the grand scheme of things, and before you know it they'll be off doing other stuff and won't want to spend hours cuddling with you.
Good luck, and well done for getting advice before you start; that in itself is starting you on the path to success!