It all depends on what you want to target brother. If you are looking to work your adductor, biceps femoral, semitendinosus, and semimembranosus, then by all means try 3 sets of 10 to 12 reps of Barbell Goodmornings as a beginner. For hams and soleus training, go I'd go for 4 sets of 10 to 12 reps of DB Romanian Deadlift as an int. but as a beginner you can do 3 sets brother. Stay safe.