OH my.....reading all these posts has brought the emotions flooding back.
DD1 is just about to go back for 3rd year but I well remember the dreadful, sick with worry feeling that I had in the last week that she was home before we dropped her off for the first time.
I too managed to hold it together for the entire time we were with her by doing the keep busy thing , but DD3 (who was 11 at time) and I sobbed the entire way home. Thank goodness she wasn't too far away! 
It did get better though and once I knew she was loving it the weight from our minds was immense. We had 2 other DC at home to offset the gap and she would text and Skype us and her siblings regularly. Oh the boon of new technology! We were fortunate as well that she was able to come home once or twice per term , as well as hols , and the noise level and mess in the house increased ten fold.
Now we are about to do all over again for DS1 and I don't feel it any less than i did before. Not sure if i thought I would find it easier.....but it's not so far 
His whole experience has been overshadowed by the fact that he and 300 other freshers couldn't get accommodation on campus for their first year so we have had the most horrendously stressful few days trying to set up private rented accommodation......with complete strangers!
I find this a disgraceful situation to put young people in for the first year of Uni , but it doesn't seem to be uncommon and hey ho what can you do.
He now has a nice house , very close to campus and sharing with 3 girls. A fact by which he seems completely unconcerned 
Again the relief is immense and although i know when the day comes i will be a quivering wreck , he is at least now in same boat as all others and just up the road from DD1. 
I often read posts from students who don't want or need their parents involvement in their lives at this stage and I salute their independence. But i also thank the lord that all of our children have welcomed our support and advice , and continue to do so , even though the ultimate decisions have been their own.
If I had a penny for every time I have used the phrase "well it's your decision" i may have been able to pay Uni fees without a loan lol!
We found it a very difficult time , but it really did get better.....so just hang in there.
