To elaborate on 1. of Marky9's post, getting a private dorm room, if at all possible, would be immensely helpful. Study rooms may also be useful if no one else is in them at the moment. An understanding professor may even allow an overwhelmed student to hang out in their office during office hours.
Also, join an on-campus organization of some sort. These are a great way to meet people with similar interests, and it is social by nature (though the socialization is in regularly scheduled, predictable increments). Most colleges have many to chose from.
As far as schoolwork goes, keep a schedule or phone calendar of some sort, and try to at least begin assignments before the day before its due. When scheduling for classes, try, if your degree plan allows it, to have a nice ratio of "easy" or "fun" classes (which will vary according to each student's strengths and interests) to difficult or demanding classes. Exact ratios may vary, but try not to have solely difficult and demanding classes, as this can increase the likelihood of being overwhelmed. Doing the "optional" homework and reading can be useful for understanding the material. Take time to study, but note that the standard equation of 3 hours studying a week to 1 hour in class may not apply to you; if you find yourself getting overwhelmed, stop and take a break.
Best of luck to your students!
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I am not a textbook case of any particular disorder; I am an abstract, poetic portrayal of neurovariance with which much artistic license was taken.