Great advice there - please seek out the support of your local ABA people.
It sure is possible - and it could be a challenge.
I would also think that if you are going to be watching 'the charts', you could fall into this trap again - I would rip the charts out of the baby book and tap into your instinct about how your baby is growing You have what it takes to nourish your child without needing to feed formula, just to keep up with charts - also remember that those damn averages only work because there are babies who fall into areas either side of those figures. What I mean is, there is no such thing as an average if ALL babies were to be 'average'! And this, in no way, means that the non-average babies are unhealthy...it's just that those babies will never be 'average' because of genetics or whatever, so it's ok for babies not to conform to what our health nurses would like to see
Oh, and by the way, you can ALWAYS come here to BB when you're having a tough time. Do both you and your baby a favour and give BFing a shot again