breastfeeding advice

Gi
Please help me, if you have any advice or tips & tricks.
Not only is my newborn cluster feeding, but everytime she latches on good, she either lets go or falls asleep -_- it's BEYOND frustrating. I just started pumping so I can have a bottle for nighttime, during the day I only breastfeed. I've gotten two hours of sleep every night this week it's taking everything in me to continue and not switch over to formula which I don't wanna do at all  😩😭😭😭