Does sleep ever get better??

My EBF son is 7 1/2 months now and has only slept through the night a handful of times. I’d like to think we’ve tried everything to help him sleep longer.

We did sleep training at 4 months and he goes down for all 3 naps and bedtime all by himself. Drowsy but awake. And now his wake times are 2.5-3hrs and we are feeding him 2 solid meals a day as recommended by our pediatrician.

Many parents say that their child has slept through the night since x months and some others say that their 3 year old has never slept through the night. Anyone have any advice or tricks that worked for your child to get longer stretches at night? Thanks in advance!