Hi and welcome to the forums.
Your "about" info says you're not diabetic, but your post above indicates that you are. It will help people to reply to you if you could give a bit of additional info - what type of diabetes, when diagnosed, what your last HbA1c was, whether you're testing your own blood, any medication - that sort of thing.
I'm not sure I completely understand what you're asking. In the early days after diagnosis I recorded everything I ate and any other relevant information - or at least, information that seemed relevant at the time. At its most basic that was logging two fingerprick tests for meals, but also included any illnesses, for example, or any medication I'd taken. I did that via a notebook, which quickly turned into using a diary (I found that buying diaries in February is very cost-efficient).
I've found over the last 6+ years that food (referring to food with carbs in) does nothing to keep levels stable. Carbs will elevate my BG levels fairly dependably, the question being how quickly they come down. At the levels I'm eating carbs, (ie 20g/day) that's happening reliably within two hours. And my eating pattern is one meal a day in the evening, with maybe a small meat/cheese/salad plate at lunch.
Otherwise, I rely on my liver doing its job to balance my BG levels, it's not anything I'd ever try to do through eating. In fact, my early records show that my BGs were regularly elevated after fasting. It probably took about six to eight weeks for my liver to get used to lower levels as a new constant.
What do you mean by "energy levels and flare-ups"? Sounds a bit like it might be a reaction to a glucose roller-coaster - if your levels are rising and falling very sharply because you're taking in a lot of carbs people do report feeling off. Those aren't usually classed as diabetic symptoms - they're reactions to rapidly changing glucose.
Unfortunately you get a lot of erratic terminology being used on the internet, especially on place like Reddit - all glucose rises being called "spikes", for example. It helps just to talk about what's going on with you.