Welcome to the site, KaidieLin
There is a lot of useful information here. I recommend you go through some of the archives (older threads), too. There are a lot of people with success stories, even if they don't use the site any longer.
A piece of advice I have for you is to accept that you absolutely can lose the weight, but that it will take time. It's not magic, but it's completely possible. Talking to your doctor is a good idea - they'll hopefully have some resources to help get you started. You may know this already, but what you eat is going to be 90% of what lets you lose weight. Exercise is excellent for health, but not very helpful for weight loss. If you want to focus on one of them to start off (as seems to be common), focus on food.
Again, you can totally do this. Just one step at a time.