Struggling with breastfeeding

My baby is 2 weeks old and I'm still struggling with breastfeeding. She latches on well, sometimes she has good sucks but it's random. She does not seem to be getting much and I have to supplement with formula. I've been pumping but the max I got is 3 oz and I do not see an improvement.

Any advise?

Anybody going through the same situation?

I really want to breastfeed my baby

Thanks