Hi Jontue
You know, balance is exactly what you are experiencing: Moving backward and forward and side to side as your body is in constant search to find balance. What you need is practice at balancing and as you get that you’ll find that those gross movements become finer and finer. They won’t disappear. Balance is not a static thing.
Just surrender and don’t worry about it. Just observe and marvel at your body at work!
Namaste
Gabrielle 🙂