[codingdave]

Let me correct one thing - it is not that you have a 6th grade education, it is that you stopped formal schooling at the 6th grade and completed your education on your own. If you truly had stopped learning, you would not have accomplished what you described.

So rather than fret over when the last time you sat in a classroom was... Be proud and confident of who you are, what you have accomplished, and what you will accomplish in the future.