Haha, oh no, red bull! ;D I used to love energy drinks too, but I've cut them out because the sheer amount of unpronouncable chemicals in the ingredients concerns me, lol. If you absolutely can't live without energy drinks, at least switch to the sugar free ones. At least then they're not adding to your calories. Maybe you could try swapping one of your red bulls for a glass of water once a day, and build on it from there. Small changes are fine, because you have to get accustomed to it at your own pace and even small changes add up over time.
As for exercise, I suggest swimming. It's really low intensity which is perfect for larger people, as it puts no weight or stress on your joints. If you can't swim, try aqua aerobics classes. You get the great resistance from the water, and still burn a ton of calories per hour.
Actually, now that I think about it, there should be a government weight loss scheme run by the NHS in your area. In the Cheshire area where I live, it's called 'step by step' and it's basically combining a weight-watchers style group session once a week where you learn about nutrition, portion sizes, how to effectively count calories, etc. as well as a series of free activity classes throughout the week. I was a member when I was bigger, and I loved it so much. I made great friends and the activity classes were really fun. I particularly enjoyed the water exercise class. And as it's a scheme run by the NHS to help obese people back to a healthier weight, it's free. You will likely have a different program in your area, but you WILL have something. I'd ask the doctor, or look into it on the NHS website.
I've talked too much again! But really, any advice I can give you, I'm more than happy to help, Jose.
