My 8 month old still hasn't slept through the night. he wakes up every 4 hours to eat and goes right back to bed. is this okay?

Yes: This is entirely normal and common at this age. Keep up the good job and happy mother's day!

"Trained Night Feed-: Ing" in a healthy 8-mo.-old stops if you ignore his night crying consistently till it's gone, despite his ⬆ed protests the 1st few nights. See "graded ignoring" on aap.Org's healthy child app. With a consistent bedtime & routine - read, brush his teeth after his last bottle & put him in his own bed, drowsy but awake, he'll learn to self-calm to fall asleep & back to sleep when he night-wakes.