Has anyone tried keto?

Franchesca • ⭐️L O V E⭐️
I'm waiting on my keto cookbook to come in, as I've heard good things of that diet. Any comments on how you feel after starting, results, energy levels, etc? I've never been the type to diet. I just always relied on portion control. After being told I have insulin resistance, I realized portion control just isn't enough. Advice is always welcome!