Hi there. As you are recognise, this suggested calorie limit is too low for you and not sustainable.

You have made the mistake of wanting very fast weightloss. This is not a good idea even for dieters without anxiety issues. The only people who should reasonably expect to lose so much so fast are people who are already obese. You do not look to be obese.

I would suggest you urgently redo your numbers and find something much more easy. We don't know your height or starting weight but if people automatically provided these figures it would make responding always so much easier.

But anyway, go back and work out your TDEE that means what is your daily total energy expenditure. If you put in that you just want to maintain your current weight that will give you your TDEE or google that term and find another calculator. I like the one on the health-calc.com website.

So now you know your TDEE.
Next go for minimum weightloss. On MFP i think its half a pound. Plug that in. That will give you a much more reasonable number of calories to eat to.

Next. Work on improving the quality of your food. THIS IS SO IMPORTANT. More vegetables, more nutrition, plenty of protein. Don't be too frightened of fat but choose healthy ones Cook with cold pressed extra virgin olive oil. Eat not more than 30g of nuts or seeds per day. Eat not more than 30g of cheese per day. EAt full cream dairy foods. 1/4 of an avocado in a salad or on toast is also good. I always mix my fat with other low fat food to get the most benefit. Its refined foods that are the issue. These trigger hunger and some of your weight issues.

Try to keep your total net carbs (total carbs minus fibre) down to about 150 or less. This will help moderate your non-stress appetite.

Exercise for your mental health. WE all know exercise is good for us but recently i've heard how good it is for anxiety. I'd suggest in particular walking or running is good for that. Try to keep your mind off your problems while doing that. Give your mind a rest from worrying.

Learn about mindfulness meditation. I must admit i find it hard to do when depressed. and its quite challenging for people with anxiety but even if you start by doing it for one minute at a time where you just take a few deep breaths and try to focus on your breath for one minute at a time, you will develop your ability to calm yourself down when you want to.

I'e stopped regular meditation but maybe its time i tried this one minute meditations myself. Meditation is great for going to sleep at night.

I have a beautiful friend who has created a website called Zensmarts. She has some stuff on their that you might like. I am not suggesting you spend any money and buy a course. You can learn meditation for free in many places. Her site is targeted to corporate people mainly but i know this person, she is wonderful and genuine and intelligent.

A great place to go for finding other meditation resources both off and online is the secular buddhist website.

It is true that when we are stressed, we tend to want to eat carbs. So you need to learn how to manage those feelings and resolve your stressors e.g. your problems to reduce your anxiety. If you haven't got a supportive councillor, you need one. If you are in college, use your school councillor. Learn how to be open with them about your worries and problems. Leran how to use them as a sounding board for finding solutions to your problems.

There's also a book that might help you a lot written by Judith Beck. I think its called the beck diet solution and there is a support group on the 3FC forum. Her approach is using CBT or cognitive behaviour therapy which is the technique used by many psychologists these days for most mental health problems.

I"m glad you found this useful. Life is long. There will be ups and downs. there will be successes and failures. We can't avoid the bad times totally so we just have to learn how to roll with the punches as they say. Everyone fails at things. Learning to be good at failure gives rise to more success.

It took me a long time to learn these things. Don't be afraid to live. The more things you try the more little successes you have the less anxiety you will experience. Keeping trying. Don't ever give up.

I used to get anxiety when young. I don't get it much at all anymore. Mainly because i found the courage to do the things i wanted to do. And saw that i could do some of them. I've had a lot of failures but its been quite fun trying too.

Best wishes with your life.