i WAS gonna gatekeep this but like nobody checks guides anyway, so here
dashing, jumping and turning around will stop you from losing momentum, won't work with midair dashes though
the faster you do it the further the dash, if you do it fast enough you just jump upwards and don't gain momentum but still have the active hitbox of the dash, so if you uppercut someone with this they get knocked back and slightly damaged like a normal dash

using an item while dashing, preferably hero's chalice, makes you lose even less momentum than dash hopping for some reason, i don't know why, works midair too