Need some words of wisdom

Sorry this is so long,

Ever since my son was born, breastfeeding has been constantly trouble. At first he struggled with his latch. Being a first time mom, I let it go thinking it was correct & ended up with severely cracked/bleeding nipples. I went to an LC where they corrected the latch, however, I needed to pump and use a nipple shield until my nipples healed more. After a few days of that, I was able to remove the shield and begin again. Then a week or so later he started to lazy latch. He would start with a deep latch but a few minutes in he’d unlatch & latch back on but only over my nipples. Obviously I knew this wasn’t correct after my first experience. On top of going through this, we developed thrush due to my cracked nipples & 3.5 weeks later we still have yet to beat it. Finally our doctors both have us on Diflucan & I’m hoping it does the trick. I went back to the LC who told me the latch looked great. I knew it wasn’t. So I resorted to a nipple shield for the past week and a half hoping it may help his latch. I have tried multiple times since without the shield but he still only shallow latches. After much debate (& my doctor telling me to) I have decided I am going to primarily pump and nurse at night. My nipples cannot take the shallow latch but I can handle the nipple shield a couple times a day despite the 20 mm shield still being too big. Now I am having trouble emptying my breasts with the pump. I produce anywhere from 1.5-3 ounces every 2-3 hrs and my breasts still feel full. I have pumped for hours trying to empty them but it does not work & there is no way I will be able to supply his demand with that small amount. I am going back to the LC for the third time in 5 weeks tomorrow hoping to get some help with the pump & maybe even try latching one last time. I’m a FTM & going through all of this makes me want to give up & go to formula. The stress I have is insane when all I want to do is give my son breast milk. I would love to be able to breastfeed but will be okay EPing if I have to. I’m just looking for some encouragement to push through. If tomorrow doesn’t go well, I’m not sure I’ll continue. I’m torn & heartbroken.