Feeling frustrated


Since my daughter has been born I really wanted to breast feed or at least pump and bottle feed her so she’s getting the nutrients she needs but it seems like no matter what I eat or how many times I pump throughout the day I get less and less milk and I noticed my breasts are shrinking. Is this normal should I stop and switch her to formula 100%. Ive done lactation drinks but seems like Im gaining more weight doing that because it’s supposed to be mixed with milk. Ugh I don’t know what to do!