Restarting milk supply?

💁🏽 • Mom . College Student . My mouth is reckless .
My baby was in NICU due to being born 7 weeks early so I was pumping and they bottle feed her. When she was released they put her on high calorie Similac and told me I could only nurse twice a day. That ruined my supply but now that she's "term" (her due date was June 8) she is much stronger and latching perfectly except I'm not making enough milk. I give her 2.5 oz of formula and try to nurse her for the remainder until she is full. But I'm only getting an ounce from both breasts together and she's eating about 4. How can I increase my supply quickly? I have done nursing vacations but it hasn't been effective because as soon as I put her down to pump, she cries. Can I pump every hour while she's sleeping? Would it be bad if I fed her, pumped then let her nurse? I'm willing to try anything. Her formula is killing my pockets