Breastfeeding with my first hurt like hell for the first week or so. It was the most painful thing, ever! But slowly it started to hurt a bit less, and I perservered. LO had to have a bit of formula (less than 5 mL after each feed), and I pumped and gave him that as well for the first little bit. He was bruised after birth, and as a result jaundiced. The poor kid couldn't stay awake long enough to nurse, so we had to supplement. Shortly after leaving the hospital though, we didn't have to supplement anymore.
I was lucky to not have any major issues with LO nursing. We had a Lactation Consultant come and see us in the hospital due to the jaundice, and she taught me several different holds that made it easier for LO to latch properly. I used those until we were well established, then found more comfortable positions for me. They also visited me once at home, but by that time things were going more smoothly.
I say the best advice is just to ask for help. Not only are you new to this, but baby is too. It just takes a bit of practice. Experienced LCs know this, and can offer different techniques, because not every position will work for everyone. I found the biggest challenge for me was the growth spurts. He ate every 20 minutes for days, and then finally settled down. While it was pure hell at the time, I'm glad we pushed through it. The exhaustion was not fun.
All that being said, within a short time, LO and I were pros at nursing, and it was one of the things I enjoyed most in the early days. I really did miss it when we weaned (which had to be done at 1 year due to an emergency resulting in my needing surgery and plenty of medications that weren't BF-compatable).
Wow. That was a mouth full! And I could have typed much more than that!!
On another note, I'm an orange today! This morning, LO and I were laying in bed, watching the video of this week on my Bump App. I paused the 3D ultrasound they had to point out the baby's body parts to LO. He listened, then made a face and said, "What the frig?!" It was hilarious!