Liz, welcome!
WTG on dropping the sodas and alcohol, that will definitely help! I just gave up sodas recently. I hadn't planned on it, but in cutting other sugary things out of my life, like candy bars, sugary cereal, etc, I found that regular soda just tastes like a bottle of syrup now...ptooey!
Have a look around the forums, and post where ever you feel comfortable. You'll find lots of great support and ideas here!
Cheryl