Mazel tov on making a decision that will surely affect the rest of your life. I am in total agreement with many of the posters here, and have personal experience, because my dear husband is a baal teshuvah. He became religious over 38 years ago, and we are married almsot 32 years. His journey back to observant Judaism began when close and very non-judgmental friends pointed out to him that he knew everything there was to know about Christianity, Islam, Buddhism, etc. but absolutely nothing about his own religion. He realized they had a point, and the rest is history. He took small steps, and each one brought him closer. I recommend the same to you. People who “flip in” to religion, have a tendency to “flip out,” as well. Though it would be phenomenal for you to suddenly be totally keeping Shabbos and Kosher, in truth you would do well to begin to learn and absorb things slowly, so that they have staying power. Too much too soon, can be very overwhelming. Your best best lies in finding an Orthodox Rabbi who has experience in teaching people like yourself,who are returning to Judaism. He will be sensitive to how to approach teaching you properly. it is, as someone mentioned, a great idea to develop a warm relationship with the Rabbi’s wife. Many of your interactions will probably be with her. The Donen book, TO BE A JEW, is excellent. Another interesting source, if still available is “The Jewish Catalogue,” by Strassfeld, an enjoyable compendium of Jewish information. Get ahold of as good Artscroll prayer book, when you feel ready. It will have an English translation, and will explain the meaning behind the prayers.
I wish you much success in your journey, and hope it has the same impact on your life as it did on my husband’s. Above all, do not be discouraged at any point. All worthwhile things take time to achieve.