Welcome to Spark, and best wishes on your journey. SP has a lot of great features and I suggest you take it slow and not become overwhelmed. Join some groups for motivation and support, and get to know your classmates!
Have a great weekend, and feel free to have a piece of chocolate or two. It is a once a year event after all. Portion control is the most important thing to remember, and that this should be a lifestyle change, and not just a diet.