Breastfeeding after c-section (Help)

Anyone having issues breastfeeding after their c section? This is my second c section first was emergency and this one was planned (ish)(went into labor naturally but due to not being able to have kids naturally I needed a repeat c section) I am having a hard time getting and keeping my milk supply... My LO won't suck to long because she's not getting enough she eats from both sides and I'm pumping in between feeds in hope to make more milk and it's not working.. Any suggestions?!?