The websites such as eharmony might be a good idea. Another way is to get invovled in some kind of club or activity...volunteering or something like that, or join a church and get involved in some kind of committee (new experience for you, since in the WT the women are only allowed to pioneer and clean the bathrooms) and you can meet people through that particular group. Some volunteer opportunities are: hospitals, animal shelters, museums...probably other things.
As for myself, once I left the WT and went out "into the world" I never tell people about my past, especially when dating. I have some great friends who invited me over for Thanksgiving. They asked what do I normally do for Thanksgiving, spend it with family or what? I said something vague, like "Oh, some years I spend it with relatives up north, some years I stay home...it depends..." Same with Christmas. If a date asks me about my religious affiliation I just say, "Oh, I'm kind of open minded...I don't consider myself any particular denomination." And as for the subject of friendship, I just say that some of my old friends seemed to have drifted away...you know, people change over time....
I feel that is better than explaining that I was in a mind-controlling cult for so many years and am new to celebrating holidays. That might freak them out.