If you have the goal to lose weight quickly, then you need to have some fat loss programs to fall back on. Even though the nuts and bolts of losing fat is really not too hard to understand, if you don't have the right fat burning plan to begin with your chances of long term success are slim to none. If I'm working to help someone learn how to drop a few pounds, I pretty much always begin by teaching them how to create a sensible weight loss program that they can put to use right away and also use for years to come.
The first part of designing fat loss systems that get results is to begin with a goal that is not too over the top. There are too many fat loss plans that don't take this into account and undermine people right off of the bat. On the flip side, if you base your program around a realistic goal, then you will be able to steadily progress towards your goal without becoming overly frustrated. A decent fat loss goal should allow you to push through your comfort zone, but still allow you to make some progress towards the major goal. This is really important for your motivation levels, and it becomes even more important as it gets tougher and tougher to stick with your plan.
As with any body fat loss related goal, your programs goal should be something that is measurable and attainable, yet fairly aggressive and bound to some sort of realistic time frame. If you can get into the mode of thinking about goals that are congruent with this framework your weight loss program will more than likely be very effective. However, if you insist on setting weight loss goals that leave out any of the goals setting tips listed above, your program will not be nearly as effective as it should be.
Now that you've set your goals, it's time to move on to figuring out the nuts and bolts of your plan. Since fat loss is achieved by creating a calorie deficit, I always teach people to simply eat a little bit less than they are currently eating, and then incorporate some type of resistance exercise combined with aerobic exercise. This definitely is the best way to lose weight and to keep it off into the future.
The bottom line is that when you try to lose fat by exercise or diet on their own, your program will just not be as effective as they could be if you simply combined the two techniques into a comprehensive approach to weight loss. Many times this will lead to some type of permanent change to your life where each habit works in unison with the other until before you know it, you're in the habit of eating healthier and exercising regularly. This is what typically leads to sustained weight loss.
If you want to strip off fat quickly and keep it off into the future, then you need to learn how to set realistic weight loss goals and mix in a sensible diet with different styles of exercise. If you can get into the habit of doing these things, then any weight loss plans that you design will be extremely effective and easy for you to follow down the road.