I've done every plan there is. I've had an interesting time narrowing down what works for my body.
Right now I'm intermittent fasting (which will probably be a permanent thing, I love it), and eating a Whole30 diet. No grains, dairy, legumes, or processed sugars. I feel amazing. I'll probably keep a whole food focus when this month is up, and maybe add some limited legumes and dairy back... and calorie count. We'll see
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The key is to find what works for you, and what's sustainable for your life. I finally feel like I can be successful because I've found a way of eating that I both enjoy and fits my lifestyle.