Great job so far, really impressive! Your “path” to fasting/ketosis has been non-traditional for sure but, to each his own!
As far as not eating “strict” keto, I don’t recommend doing it half-assed.
My wife and I tried that and found that we spent more time out of ketosis than in and we get the best overall benefits from nutritional ketosis, it gives us the mental clarity/stamina you’re feeling but also the energy to work-out (I’m addicted to running) and do our “usual life” with ease.
We enjoy fasting but find that it only gives us 1/2 the picture, the mental side, while the physical side suffers, as you’ve seen in your process.
Good luck to you, I wish you the best.
Tim