3 Hour Glucose Test Results

So I had my 3 hour glucose test yesterday after failing the 1 hour by just 3 points. I know I failed the 3 hour as they posted my results late last night (Friday) but they won’t call me until Tuesday or Wednesday since it’s a holiday weekend. Curious if anyone else has had a result over 200 and was able to control their GD with diet/exercise? Or were you started on insulin right away? I’m hopeful they will let me at least try to manage with home monitoring/diet/exercise but didn’t know with such a high number if they would. I know each doctors office is different, but would love any personal insight! Thank you!