Fighting Streets of Rage style movement script

I don't know C# and can't wrap my head around it but I need a script for walking on a navmesh 2D X and Y. I have 4 animations: Left/Right Idle and Left/Right Walk, so the character would have to always face left or right and use sideways animation to walk vertically based on which side it is facing (presumably indicated by a bool). I don't know how difficult would it be to make such a script but if it's not then please help me.