Oh gosh, I just see now that you're from South Korea. Wow. I bet that does give you limited options on many things.
I personally would rather do other things with my calories then eat cheese. It's a personal choice though. I would much rather eat a big salad and a small can of tuna lets's say then some cheese. Or a fat free yogurt with some Fiber One cereal mixed into it. Cheese just doesn't satisfy me enough to use up my calories on it, it doesn't fill me at all. But again, that's just me and my tastes. You have to make this work for you, choosing foods that you like best and satisfy you. The better you like the foods that you are eating, the better you will stick with your plan, therefore making it more likely you will lose the weight.
There are a lot of mixed opinions about starvation mode. It's one that I personally don't buy into and therefore I don't ever worry about it. Ever. Many others would disagree with me. Please take a look at this article on the topic:
http://www.weightwatchers.com/util/a...d=35501&sc=801
I would give something a try for 2 weeks or so to see if it "works" or not. After that time and no loss - I'd start tweaking things a bit.
I think you're doing quite well for a beginner or even for not a beginner. This is a process and you will learn more as you go on. A lot of this stuff is trial and error. Keep experimenting and find what works for you. You're definitely on the right track and I have no doubt you'll figure it all out.
Good luck and please feel free to ask any and all questions that you may have.