Yes eating celery is good to help you have bowel movements and can relieve constipation if you eat enough celery.
The Celery contains insoluble fiber content which helps get your bowels moving and loosens your stools.
Eating just 1 cup of celery will give you the needed 10% of the fiber that adults need to stay healthy and to keep their bowels moving properly.
Besides helping improve your bowel movements the celery also has antioxidant and anti-inflammatory nutrients which offer protection to your entire digestive tract.
So your digestion will improve as well when you eat celery on a daily or near daily basis.
Your energy should also improve as a result of eating celery.
You can also make celery juice which is easier to digest and you'll likely intake more celery drinking celery juice and it will improve your gut health as well.