Glucose Test Fail

Okay so I found out yesterday that I failed my one hour glucose test. I am going on Wednesday to take my 3 hour one and am really nervous. I’m trying to eat high protein foods and drink lots of water. I am also trying to walk a lot each day. This time I was told to fast for 8 hours before the test. Anyone have any tips? I really am hoping I don’t have gestational diabetes because I have heard that means I would probably have him early and that really worries me. Thank you for any advice you may have!