breastfeeding

I just want to vent at how difficult breastfeeding has been. Baby girl is 10 days old now and first 5 days I was dealing with a bad latch because of her tounge tie. they clipped it. but now my supply isn't meeting her demand. ive been doing all the pumping after feedings, I take a ton of supplements. and it very slowly increases. I wanted to exclusively BF and feel like Im failing Because I have to supplement to meet her needs.. I can get out just barely over a oz each time I pump/hand express. when baby girl takes about 2oz each feeding