You are not alone. I’ve had strept over a dozen times in my life, maybe close to 2 dozen times. I’ve taken every single antibiotic on the market. I had to get my tonsils and adenoids removed because I had it so much. For a long time afterwards, I was relatively healthy with no problems or symptoms, so keep in mind that antibiotics doesn’t mess up everyone.
All strept is is another type of parasite/bacteria that lives in the body naturally. In time, you can reverse your gut flora to contain more healthy bacteria. This is only a short setback.