What do you think of the 30 day squat challenge ?
Just gonna copy and paste from a previous answer if you don’t mind :)
You should really check out fitabled's post about the problem with squat challenges. Basically the amount of repetitions in squat challenges are way too high. In order for your butt to get nicer your butt muscles need to grow. Doing 100s of squats train your butt for endurance not growth.
"Scientific research has shown that the optimal repetition range is around 8-12 reps per set. So you really should be doing sets of 8-12 squats to be creating that butt you so dearly want.
So cool you say, I’ll just break my 50-250 squats in to sets of 8-12 and I’ll be good! Not exactly, research has also shown that there is a diminishing return on muscular gains after about 3-4 sets of a certain exercise. Meaning that if you do 10 sets of squats you aren’t likely to see better results than if you simply did 3-4 sets of it.
Your ideal squat program should look something more like this. 3-4 sets of 8-12 reps.”
And also you need rest days and you eventually need to add weight!