Congrats on your little bundle!
I exclusively nursed both my boys (for 10 friggin' months each! Le sigh!!!) but no matter how much Lansinoh you use, your nips will be sore at first for a few days.
What's important is baby's latch. He has to open his mouth really wide to try and take in as much of your breast as possible into his mouth (that means nipple AND
areola). If he's just latching onto your nipple, it will be a disaster for you (trust me, I learned that the hard way). Baby's bottom and top lip should also be curled outward while feeding.
Google some pics of a correct latch to help you out a bit. That's what helped me.
We tend to think breastfeeding is supposed to be this innate thing that we "know" on instinct, but that's not the case. Mom and baby have to learn and get accustomed to the whole process. Takes a few days and lots of practice, but you can do it. Even if you decide it's not for you, hey, at least you gave it a shot
Good luck and congrats again!