Tried breastfeeding but baby has trouble latching 🥺

I’m a second time mommy, my daughter will be 1 month on Wednesday. We’ve tried each time to give her my boob and she has trouble latching but today she finally latched 🥳 but once I tried again she couldn’t not sure if maybe she’s tongue tied I will talk with pediatrician on the 29th. But I’m trying to exclusively pump as well. Are there any tips that I can keep my supply if my daughter can’t latch? I know to stay hydrated and eat well, but are there any other supplements or lactation stuff I can take or do. Please help I would really like to try and breastfeed more than 3 months.

(NOTE: my first daughter literally didn’t want nothing to do with my boobs but I did pump until 3 months then my milk dried up)