Welcome! Congratulations on your engagement! I hope/think you'll find tons of support and motivation from 3FC
Basically weight loss boils down to calories/energy consumed < calories/energy expended. You have to eat less than you burn off. I know this may sound wayyy dumbed down but when you hear a swirl of atkins-lowcarb-highprotein-medifast-fatsmashers- intuitive eating, etc etc that very simple equation gets lost.
The specific TOOLS you use to ensure your calories consumed is less than your calories expended depends on your own health factors, personality, schedule, etc etc.
For me, it's a few simple common sense rules:
- count calories carefully, sticking to the specific number a day I'm allotted right now
- get 45 minutes of cardio in 3-5 x a week
- get 15 minutes of strength training in 3-5 x a week
- reduce salt and sugar intake
- drink lots of water
- eat almost exclusively whole foods (i.e. nothing processed or packaged- fresh fruits/veggies/grains/homecooked as much as possible)
For others, it may be going on Atkins to reduce their carb intake, going on weight watchers and using a point system, etc. These are all just tools to get to calories/energy eaten < calories/energy expended. Perhaps learn more about these different tools and pick one that you think fits you personally best. You can always change tools (switch from calorie counting to South Beach to intuitive eating, etc) if one isn't working for you. Bottom line should always be the same though: Move more, eat less
I'd peruse around the General Diet Questions and Weight Loss Support threads- these are super helpful for tips and basics. Especially look at the "sticky" threads at the top of each forum- these are the 'permanent' threads that stay at top because they offer general basic advice as opposed to the specific advice in the threads which move around below.
Definitely ask questions- there are a lot of knowledgeable people here who are happy to share their experiences. Good luck and keep us updated on your progress!