You did well.
The HbA1c is a very good indicator of what your BG levels have been over the passed few weeks ... It is an average. So it is dependant on the Lows you get and the Highs.... As you get very low LOWS that will offset against the Highs. Let us know what the result is.
Your self monitoring will help you learn to keep your BG levels from going too low or too high...
As for Oat v Wheet abix ...it depends on how your sugar levels react to each... some people avoid wheat... test and see how you react.
You're doing good so far...