Please try to see your doctor and explain the balance issues, and most importantly, the fall. Your doctor can then prescribe physical therapy paid by your insurance. Basically, strength exercises for your legs and using arms to maintain balance. Some are individual and some in groups.My balance has deteriorated a lot over the past year, so falling is a fear. In fact, I fell outside Monday working on my golf cart. Soft landing and no damage.
My husband had Parkinson's and was really unbalanced and afraid of falling. He went to Physical Therapy "Before the Fall" classes and loved it. After not too long he was walking around with confidence.
He had "homework" of practicing 15 minutes a day. And he was sorry when it ended. He had some dementia, but knew enough to tell the doctor he was "afraid he might fall" which got him another stint of PT. Pretty slick.