Nursing on demand works much better than scheduled feeding. I was finally able to nurse my fourth baby using this. At first I thought how can this be easier than a bottle, cause it seemed like he was nursing all the time. Once I got passed the growth spurts in the beginning, it was much easier.
Try to find a calm spot to nurse and concentrate only on the baby and nursing. Drink plenty of water. I found being calm and loving toward my child helped. I also thought to myself, "More Milk". When my DS had a growth spurt, I would use "More Milk Plus" to help out. I stopped thinking that my breasts were like a bladder and once the bladder was empty, no more milk. The funny thing is that thinking that way helped me, caused even if the baby was on for quite awhile, if starts sucking hungerily, I would have another letdown.
As for pumping, some ladies don't produce a lot via pumping but can adequately feed their little one. Don't stress out. Be calm. It is helpful to have an item of your baby's around or picture. I close my eyes and pretend I have a very hungry baby latched on. Taking a deep breath and releasing it and relaxing my torso helped me. I would use the smaller bottles when pumping at first. I pumped the same amount, but the smaller ones made me feel better cause the level was higher. You may need a hospital grade pump. I really like using my Medela Pump in Style. The newer once have a letdown mode that is supposed to simulate the initial hungry sucking of the baby at first.
I guess you might have caught on that what worked best for me was to have a positive attitude. It was gruelling the first 2 months or so, but I tried my best to keep my emotions positive and give up my time to just focus on the baby. So for me, after having 3 previous children I was unable to nurse, my 4th was the charm.
If your baby is getting enough milk, they will have a goodly amount of wet diapers and poo diapers. Unless you have an accurate scale where you can weigh the baby before a feeding and after a feeding to see if they are getting enough, the only way to tell is with their diapers. In the beginning, they usually have like 8 wet diapers.
Find a good lactation consultant. Someone who you are comfortable with. If you don't like them, it isn't likely you will be helped. Like a previous poster recommended. Kellymom.com is a good source of information. That is what I did, search the internet and joined a breastfeeding support group via yahoo. It is so nice to have other mothers to relate to. :D