It's funny that I was about to post something along these same lines. I suppose spending time with family around the holidays will do that to you. Families are just people who you happen to be related to, and I think it's pretty common to not get along with them that well. I have always had a good relationship with my parents, but in recent years as I have branched out and found lifestyles that suit me, I have had to deal with the repercussions of that. The more of an individual I become, the less my family accepts me the way they used to. I feel like maybe you should get some distance from them (like someone else already suggested) and find the kind of support and connections that you are looking for with friends who have similar views and interests. It's difficult to do, though, especially when you feel like the oddball of the family. If you are firm with your choices and stick to it, they will eventually accept that you are not who they want you to be and start accepting who you are. I have resolved to distance myself from my immediate family and find social outlets that allow me to be myself. That way, when I do see my family once a year, we will be so busy catching up that conversations will be a little more superficial and friendly. I would rather have a warm fuzzy relationship with them, but if it's not possible than I have to stop swimming against the current and start accepting the way THEY are, so they might accept me as well.

Hope this helps a bit. :-) You are not alone.