Aqua, your breasts won't always feel full. Have you contacted a lactation consultant?
After your month of feeding your breasts should have regulated nicely and you should have found that they seemed almost normal a lot of the time.
This shouldn't have hindered production. More milk is 'called to be made' when the breast has been emptied the last time.
I'm a little frustrated with all the promotion of pumping that I've found in my day to day life, it seems like it's being promoted a lot by healthcare professionals etc., but I've heard numerous cases where pumping fails.
With DD#1 I had overactive letdown (I expect that with this one too)... I just absolutely gushed when I fed her. But the moment I had to pump, I literally clammed up and couldn't get but a few ounces. No matter what I did, I couldn't get nearly the amount I knew she was getting in a feed.
As an aside, I used to 'capture' the milk from the opposite breast as I fed and it let down instead of pumping because of the problems I had with pumping.
I actually thought there was something wrong with me in that I couldn't pump at all... but my daughters pediatrician assured me that as long as the diapers/day was fine, and she was doing well (if we weren't in a growth spurt), I was making exactly what she needed.
Babies have growth spurts at 7-10 days, 2-3 weeks, 4-6 weeks, 3 months, 4 months, 6 months and 9 months. So those early weeks have a lot of growing and breast feeding/production adjustments in them. IOW just about the time you think you have it figured out, she starts acting unsettled and needy. Hang in there, let her suck, (I'd blow off pumping, but that's me) and let her get your production back up to snuff. She's not going to starve.
Good luck, and remember no matter what if it doesn't work out, you did your best.
Get her on your breast.
Contact a lactation consultant.
Slow down (or stop) the formula supplements.
Keep up with the production increasing supplements etc.
Don't beat yourself up.