Question Animating a Player Object directions with Separate Rigs

Hello I'm Working on my very first Unity game i'm about 40 hours in and i'm not getting very far.
for the last 20 hours I've been trying to follow tutorials and animate my player object. but every tutorial i do its a slightly different and no matter which one i try I cannot get the animator to use them.

So i have the player object, inside I have each group of sprite bodyparts Rigged together, each rig is animated but putting the together i am finding is impossible

ive been though so many unity animation tutorials they either show rigging bodyparts and animating but for a platformer so they just mirror, or animating sprites as pictures for top down so they end up not rigging.