Recently diagnosed at 24 and I don't understand

Hi guys, I am 24m, 169cm, 61kg(134pounds). I have a relatively active lifestyle. I work out almost everyday of the week and walk 4km everyday(office to home) and I thought I had a good diet rich in protein and okay in carbs but apparently not.

Fasting blood glucose - 96 Hba1c - 5.9% Mean plasma glucose - 132 mg/dl

Also maybe unrelated but lipid panel

HDL - 61 mg/dl LDL - 117 mg/dl Triglycerides - 36 mg/dl Total cholesterol - 181 mg/dl

It just goes to show that sometimes we can think we are doing things right but we aren't. It's really disappointing in a way.