transition :(

Bere
My baby girl is bottlefed since she's a premie, she's now 6 weeks old (one week old adjusted). Since she was in the NICU, breastfeeding just started at home. 
It's been really challenging because either she barely eats, or she can't get any because I just pumped, she  falls asleep, or when she eats for a fair time (10 thru 15 minutes), she ends up spitting mouthfuls of milk. I'm lost. This last part is the one that concerns me the most... is she too full? I can't lay her down because she will spit no matter how long I hold her and burp her...
😰😭
Any advice???