i'm with buff and the guys
this was the first thing that popped out at me. i couldn't imagine doing back and legs on the same day as these are the two days i literally **** near throw up everytime. imo just the sets of heavy 4-6 rep compound movements like deadlifts and squats alone would be too much for me. prioritize your training to gear it toward leg development.
i would switch up leg day to monday as first thing in the week you get it done. i would then wait until all localized soreness has been removed from the muscles, wait another day then hit them again. train calves twice a week for now allowing for the plateau that will come in training that way in time so that you will have the ability in time to add another day. use rep manipulation to build on all facets of your leg development.