DD (almost 3 weeks, born at 37+5) & I have struggled from the word go with breastfeeding & I am considering exclusively expressing & bottle feeding ebm.
I was advised by midwives/bf support workers/nicu staff to express at least every 3hrs in order to keep my supply going & also build up a stock of milk for future growth spurts. But I haven't yet managed to achieve this! Real life just seems to get in the way. Either DD wants feeding/changing, I have to do the school run, look after DS, cook tea, or something else which means I have to put off expressing. At night, by the time I've fed dd then tried (& often failed) to settle her, if I actually do get chance to express I've barely any time left to sleep before I have to get up & do it all again. Its feeling pretty impossible & I am ending up rather engorged & worrying that my supply will be affected. 
How on earth do you keep it up???!!!
If you do this, how often do you express? Do you do it to a strict schedule or every time the baby feeds? How do you deal with everyday events getting in the way?
Please - any tips/pointers/advice extremely welcome. I feel a bit lost as to how its all supposed to work 