Chipping or putting five balls in a row from the same spot is fine – if you are working on your technique.
However, to simulate course conditions, you must simulate game scenarios. A good method for doing this is playing the Up & Down game. I’ll do this at the range or even out on the course. The pros are really good at this game, which is why their scores are so dang low. Practice your ups-and-downs to improve your scoring ability.