Struggling

I’m struggling mamas. My brain hurts. I’m constantly worried about babe even though she is in the 90th percentile I worry she isn’t getting enough food. I’m breastfeeding but she only feeds for 5 minutes tops sometimes less. We meet diapers no problem too but it just doesn’t sit well with me and I don’t know why. I talked to LC and she was useless telling me she wasn’t latching properly but that was it. My pediatrician thinks I feed her too frequently and I’m just over here constantly having meltdowns that I’m pretty sure my hubs is over. I want my babe to breastfeed but I’m starting to feel it’s too much. I just don’t know how to quit. I’ve never given up something.