hi ann
I think it is definitely the fear of your new situation and probably not ocd at all. in a way part of you is dying. your old life is dying and a new you is being created. a new independent you. you will not have your family and friends helping you on a daily basis to help you make decisions about things, you new life will be your own. it is totally natural to be afraid. but you will be ok. you will probably be homesick but you will adjust. look at it as an adventure. a time to discover you. welcome to psych central. you will find we have several forums where you can post about your concerns and receive feedback from other members. you will get a lot of support here. again, welcome