Welcome back. I've been plodding along for the past couple years too....I used to do Atkins and was fine. Once I fell off for several years, I've found I have much stricter requirements to get the weight off. Now I'm practically zero carb, moderate fat, and no dairy, as well as iF'ing. I'm now older (turning 40) and my thyroid is slow. I'm sure this is contributing along with years of being at such a high weight (like my body is holding on to the 300's with a vengeance).

I don't have a lot of Keto resources on here (though I'm sure they do exist - make sure you are using the Google search function here, the other doesn't really work). I do belong to several good groups on Facebook. I'm currently reading the obesity code by Dr. Fung too. It's shedding a lot of light on intermittent fasting.

Hope this helps, and good luck