Breast milk storage help

Am

Ok ladies I am a first time breast milk feeder 🤪 and I’m going crazy with everything I am finding.. I am currently pumping and bottle feeding due to latching issues. I am trying to figure out the best way to store the milk in the fridge do I put it in a bottle do I use the bags do you lay it flat or stand it up?? I don’t make enough yet to store in the freezer but I’m so confused and lost! Any help with be greatly appreciated! Thank you lovely ladies!!!!