How long i did this plan?

hi . i am beginer . for 3 month i decide to lose weiight and fit my body . and it worked . but i see this site and i choise :

"Low_Impact_Workout_for_Beginners_-_40_Minute_Total_Body_Beginner_Workout "

i ask a Question : i would do thise plan 6 days a week and for how long ? changed the plan ?