EASY routine works for very little babies, due to its baby led (but predictable) nature.
E = Eat (a feed)
A = Awake time
S = Sleep
Y = You time (while baby sleeps).
Its a cycle, rather than a by-the-clock routine. It allows predictability with predictable awake times - an estimate for this age would be 30-60 minutes. So when baby wakes jup, you have a clear idea when the next nap needs to be and feed in that window.
I wouldn't wake baby to feed during the daytime - unless you have been advised to for medical reasons.
Start-to-end EASY cycle for this age might be 2h, maybe 3h (very child dependant), which means feeds end up being every 2-3h as baby is fed upon waking.
Some key thing with regards to baby's routines:
More sleep = Better sleep
An over tired baby will have lighter and more unsettled sleep. A baby getting ample sleep will sleep more deeply.
More daytime calories = Less night time calories needed
The more you feed baby in the day, the less baby will need at night. That doesn't necessarily mean more milk in the bottle. You could feed more frequently (say every 2h from 7am-11pm) rather than bigger volumes of milk in one go.
Milk can sometimes = Comfort
Many families use milk as a source of comfort when baby is crying, but not hungry. That is OK in itself (feeding on demand definitely recommended). But bear in mind that baby wanting milk might not mean baby is hungry.