Buddy...I agree with what what PhotoChick and SoulBliss have said. I've been dieting since I was like...15 and I've done the restricting my calories to the extreme (as low as 700) and working out very intensely on a daily basis to the point where my metabolism is now making life difficult for me. I'm not saying you're doing that...but making these type of lifestyle changes aren't just about what
you're doing but the mental component behind it. It's this obsessiveness where the only thing you're thinking about the entire time is burning calories, how you can cut out calories from your eating, overestimating portion sizes...it's a tough cycle to break out of.
I think it's great you want to make these changes but I really think you need to do research on how best to make these changes. This website is a fantastic resource. I encourage you to google your basal metabolic rate (google bmr calculator) and work from there...and also never, never, never drop below 1200. If you're that focused on working out (which is great!) you have to fuel your body so it can do these exercises.
In terms of your workout:
Are you running fast enough? Well...buddy, that depends on you. Is it challenging you? What's your heart rate around during the exercises? It all depends on how difficult the activity is for you. I run at 7.0mph, my sister runs at 5.2mph and my mum walks...my mum gets her heart rate up much more quickly than me and keeps it there for longer because her activity is harder for her than mine is for me. The only reason I burn more calories than either of them is because I weigh more...
I also think it's great you're incorporating strength training exercises into your workouts but I would advise against working the same muscle group two days in a row (I only work each muscle group twice a week). Rest is key in weight training. Strength exercises pretty much tear apart your muscle and you need time to rest for them to repair and get stronger. Less rest = less repair time and less results.
Again, I REALLY think you should do some more research...feel free to PM me if you have any questions.
The absolute last thing you want to do is hurt your body and ruin everything you're trying to accomplish. It's really not worth being thin if you aren't going to be healthy. You have to ease into exercise to avoid injury and you have to play around with your eating to find what works for you.