i don't think many people can remember before schooling - and not much at that. i remember when i was like 4yo and my dad was shaving and he touched my nose w/ his shaving cream - but before that, not much. i remember the 1st day of school (but i never went to kindergarten and my BD is late in the year, so i was only 5 then) - ran around a lot. when i was a baby, around 2-3yo, i supposedly got my leg stuck in the crib and caught in a screw and don't remember a thing of that - even though i have a 2" scar from it to this day (never took me for stitches) - tho i sometimes heard stories of that awful night since i was supposedly covered in blood. so - maybe nothing is 'blocked' - maybe you just don't remember cause your mind wasn't remembering yet.