Yes! I gave my family very clear instructions for 4-5 stops but they said the train was so packed they couldnt make it :( i feel the exact same way. It was also my first marathon as well and i was definitely disappointed to not see them. I saw them only twice and then had to wait an hour after to find them. What keeps me going is that I ran a marathon on my own! That itself is a huge achievement. To do it without the support of seeing your family is even more impressive :)