Make sure you have the helpline numbers to hand, they are on my profile.
The second something feels odd, painful, or wrong, post on here and call someone, you will get the support you need, it's just a pity you need to ask for it.(I like to claim the credit for scorpios breastfeeding)
The most important thing IMO, is to be aware it may seem strange, ut may feel a bit weird, it may be tiring, and will go on for a long time fr the first few weeks, but what you are doing is fucking amazing man!!!
YOU are amazing, and you are the only person that can do it.
Also, every time you feed that feels like you want to stop, think about getting up, sterilising a bottle, boiling a kettle, waiting for the water to cool a but, making a bottle, cooling it even more, feeding winding et. then compare it to..............getting your boob out!! that's it!!
There are likely to be times that you ave had enough, and consider stopping, the second it occurs, post, because the issue might be fixable.
I have read so much about bfing, and consider myself quite well informed, it's me the ladies on my post natal thread ask for info, and I've bf'd one baby with no problems for 9 months, but this time round (am at 9 weeks nearly) I had to post to realise I had thrush, I also have posted two other questions re: bfing because when you're doing it yourself, its totally different to advising.
We are here for you.
Hope you enjoy it.