Breastfeeding- how do I know if I am making enough milk?

Here has been my journey so far

✅ Started breastfeeding immediately after birth. Baby latches well and I am producing well.

❌ Day of discharge and baby is down 10% of body weight. Doctor recommends supplementing with formula. I decide to see a lactation specialist first BUT ✅ baby is having a dirty diaper just about every hour so we know she is eating well, so I am still confident

❌at 1 week we see the lactation specialist and baby is still significantly down in weight ✅but after a feeding the scale shows she is eating the appropriate amount!! (Yay!) So we are hopeful at this point and I continue to EBF

❌ at 2 weeks we see her pediatrician and she is still down in weight. He wants me to come back to weigh her again at 4 weeks but I will only see a nurse that day. So far the pediatrician doesn’t seem too concerned but still wants to monitor this ✅ baby is still having 10+ dirty diapers a day- so I know she is eating “well”

❌ at 3 weeks my MIL who is an RN is concerned about my baby’s size and weight. She starts to scare me by constantly bringing up how small she is. Baby is also starting to get almost

Colicky at this point making me wonder if I am not producing enough

❌ at 4 weeks baby FINALLY is back to birth weight, but still behind in weight. Baby is growing more fussy at feedings (we are still going through a million dirty and wet diapers a day, no slow down there)

✅ at 5 weeks I take her back to the lactation specialist and she has gained a good chunk of weight since her 4 weeks appointment. I bring up how fussy she is during nursing so we weigh her and feed her and then weigh her again. ❌ We find out that she is only getting 2oz a feeding. She should be getting about 3 oz a feeding at this time. 😩 Lactation specialist thinks she may be fussy because I am underproducing and wants me to pump between feedings.

Their is so much back and forth as you can see. There are all these glimmers of hope but then also set backs that make me lose confidence

Anyone else experience a struggle like this?!?