Your ticker says you only have 20lb to lose, as such, a 1000 calorie deficit is way too much. You say you want a sustainable lifestyle, but after only 3 weeks, you're threatening to do a PSMF and you're putting stupid, arbitrary lines on seeing weight loss.

Stop.

Take a deep breath.

Now, throw away the scale. It's not doing you any favors right now, and is doing you more harm than good.

Next, track your food and make sure you're getting enough food and enough of the right nutrients. If you want to do keto, the do keto. As it stands, your intake looks rather protein heavy. That's not keto. Keto requires only enough protein to meet the body's needs for it (usually about 1g/lb of lean body mass). The rest gets filled in with fat. This means that your fat grams will be upwards of 150g and sometimes more. That's a good thing.

Even if you don't want to do keto, still go with the 1g/lb measurement and fill in with carbs and fat as you see fit. Dropping carbs from a SAD lifestyle and making up for it with protein is not only unnecessary, but un-ideal and prone to nutrient deficiencies at best (due to insufficient fat intake) and dangerous and even deadly at worst. Don't destroy your body.

Eat more food. I cannot stress this enough. The list you gave adds up to about 900 calories. That's too few for a sedentary 4'10" woman, let alone a man who's likely on his feet all day and is just south of six foot. You are damaging your body by starving it. Stop it. At your numbers, you should be able to maintain on about 3000 calories, depending on the specific activity level of your job. You're not even feeding your body's base metabolism, let alone your daily life and workouts.

Are you following a lifting program like StrongLifts, Starting Strength, or New Rules of Lifting? If not, start. You'll get better results following some kind of lifting program. Otherwise, you risk falling into a rut and not progressing, which doesn't do you any good.

Measure body fat. You're a doctor, I'm sure you have access to calipers and the means to learn to use them properly, or access to someone who can use them properly. If not, you probably have access to other tools necessary to measure body fat. That is more important than the number on the scale.

You did not gain the weight over night, don't expect to lose it over night. Honestly, it saddens me that I have to tell someone with medical training this, but I hope it's just because you're too stuck in your own head, and hope that getting you out of your own head will help.

Also, meet Staci:
http://www.nerdfitness.com/blog/2011/07/21/meet-staci-your-new-powerlifting-super-hero/

Yes, I know she's female, and the effects of lifting are slightly different for men than for women, but pay attention to her weight -- it actually has gone up from lifting, but because she gained lean mass and lost fat, she's thinner. Like I said, the scale lies.

Finally, consider seeing a therapist. You seem to have some issues that stem from a distorted perception of yourself and your reality. Talk to someone who's qualified and try to get those worked out. You'll probably be a lot more successful, and a lot happier with yourself, if you do that.