<p>I agree that Mom needs to back off. But she may keep asking about your end-of-term plans because it typically costs less to book a flight well in advance and she wants to get going on that. Throw her a bone by giving her the info (or tell her when the last day of finals is, assuming your profs won’t let you leave early) and then set some clear boundaries. Explain to her that you can’t take her calls during classes etc and perhaps find a time each day to chat with her - for five minutes. After a couple of weeks, trim it down to, say, three times a week. Etc.</p>