Congratulations on taking the first step towards a better you!
To answer your Q's;
1) exercise will actually do that for you. I've heard spicey foods do it, but I'm willing to bet a good bout of cardio will do far more for your metabolism than trying to find foods that could rev it up.
2) I like to do mine in the morning, since then no matter what crazyness happens in the day, I did my exercise (aaaand it wakes me up)... but that's just a preference. There's no magic time. I would caution you from doing it too late though, since you might get too pumped to sleep right after.
3) that depends on your body, how you feel and what you'll do. Start slow; doing too much too fast will most likely end in an injury or loss of motivation. Challenge yourself, but don't try to push beyond your limits.
4) I like doing it before, others like to grab a small snack before exercising. See what works for you. Don't eat anything major right before (especially cardio, which is what it sounds like you want), as it might make you nauseated.
5)cardio is what most people point to as the burning part of work, its also good for your heart. Weights are usually seen as the ones that build muscle... though remember, muscle is what burns the fat, so the bigger the muscles, the more calories they'll burn durning cardio. I would recommend a program that at least incorporates a bit of strength into the cardio.
If you want cardio at home, the simplest way is to start going on walks, etc. If you're looking for something more, get videos (library, SP, youtube, etc... don't shell out for beachbody workouts until you know what you like) since they point out many things you should be mindful of when learning to do this stuff.
| current weight: 172.0