I have gone through this before, but it was usually about not having a gathering for Christmas. Eventually, I just accepted this as part of my world. I started to let go of these types of holidays, and I live without them now. If only it wasn't for the constant advertisements, I would be able to live peacefully.
However, I didn't just relinquish good times. I learned that these types of traditions are really excuses to feel good together with people you know and sometimes meet people you don't know. As you get older, most of the onus to create the environment is on you, and it becomes another thing you do to build friendships or other relationships. In other words, like most things, you don't have parents or school to do these things for you anymore. You have to do them yourself. Sometimes it isn't worth it. Sometimes you realize why your dad might have been mad when you and your siblings decide to skip a meal or open presents at the wrong time.