Thank you for your patience and sorry for the long delay. I was offline when you responded. Your answer is below. When you get your answers, you will be asked to give a rating - 4 or 5 stars are appreciated. This is important because this is how I credit for doing my job. Don't worry, you can still ask related follow-up questions even after you've given a rating. Thank you!
ANSWER: In order to reinstate your status, you have to do a few things.
First, you need to get a new I-20 from the DSO recommending reinstatement. Then you need to file form I-539, along with the I-20, to the USCIS.
The USCIS will consider reinstatement if you have not been out of status for 5 months or more, you do not have a record of repeated willful violations of immigration regulations, you are going back to a full course of study, you have not been employed illegally, you are not deportable for something else, like a crime or fraud, etc.
In your case, you will also have to show that your violation of status was because of circumstances beyond your control, like a medical issue, etc. So if you have some sort of proof of your depression, etc., that would be very helpful. If you don't have proof, then file the application anyway, and give a good explanation. Provide as much information as you can and hope that it will be approved. There is no way to guarantee approval of reinstatement. These decisions are discretionary so only the officer can make this decision for you.
I hope that answers your questions. Please remember to give me credit for doing my job by clicking on 4 or 5 stars at the top of your screen.
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