Destroyed my legs today

So I totally killed my legs today! No joke, I could barely walk to my car. 

Today's workout:

 

Elliptical warm up:

15 mins 

Circuit: 20X20x20x20

Squats: 20 reps 50 lbs barbell

Box jumps: 20 reps

Bulgarian squats: 10 reps per leg 50 lbs barbell

Squat jacks: 20 reps

Repeat 5Xs 

Hip thrust: 20 reps 50 lbs barbell 

Repeat 5Xs 

Donkey kicks: 

15 reps per leg

Repeat 5 X's

Stairs: 15 mins