I find it very interesting, Gitty, that you are posting on this site altogether (friend/informant who recognized your mother’s posts, notwithstanding). Clearly you feel a connection of some kind to the Orthodox world. Otherwise, all you need to do to express yourself, is to pick up the phone and call your mother, who sounds very loving and supportive. Why should you feel the need to explain your situation to any of us? We are all virtual strangers. I believe that deep down inside, you are still not so happy as you claim, in spite of your protests to the contrary.
If all you felt from Shabbos was that you needed to sit in your room and wait for it to be over,then clearly something was lacking in your Shabbos experience. That is not meant to imply any criticism of your family, by the way. I know many teens who feel that way. The idea is to get involved in activities that give purpose to your Shabbos, where you may not yet have felt any. My son, for example (who admittedly has never been off the derech), spends many Shabbosim volunteering at Yachad Shabbatons, or HASC, or Bais Ezra. He spends a meaningful Shabbos , doing something that matters, enhances his Shabbos, as well as the Shabbos of kids who don’t always get to experience Oneg Shabbos, has made friends with tons of wonderful, normal, religious young men and women, who all have the same goal as he in helping others, and has so much fun doing so. It sounds to me as though you missed the boat in finding that kind of meaning during your teen years. I don’t say that you are not happy. But neither do I believe that your new lifestyle will bring you great happiness over the long haul. It never makes us truly and totally happy when we achieve that at the expense of the happiness of those who love us. Just my opinion, and observation over the years.