Should I cut it?

OK, well I`ve pretty much decided to cut it, New Years Eve, by my friend, up to my shoulders. I will be chopping off probavly about 2 feet of hair although I havn`t measured, and its gonna look completely different. I also have decided that I am gonna leave it pretty much the same when I go to the salon, rather than going with layers or a heavily styled look. I am really not worried about what nI will be able to do with short hair, cause honestly being able to do nothing with it may be a relief, and styles may take an hour rather thn many hours. My other friend said i could cut her mid back legnth hair up to her shoulders too, but the condition is that I have to keep my hair above my shoulders for an entire year, and not even start to grow it back for a year, and I don`t know about that. But I`m about to be a short haired girl, hopefully I can find a way to drink that night to relieve the stress of doing it finally. lol.