Drastic weight loss is probably something you're looking into because you think that it's not too hard to do once you get the right information. However, you're going to find that you do need to know a few things to make sure this goes well for you.
First of all you need to realize that there is no safe way to get to your weight loss goals really super fast. A lot of people seem to think that they can just pop a pill and that will be that, but there is a lot more to it than that. Know that this will take some work and that there really isn't an easy way out for you at this point. You can get surgery and things like that, but even with those things you have to get into a good eating and exercise routine to keep the weight off.
Drastic weight loss is probably something you think you can just do and get away with cheating at it. Generally you need to still come up with a diet plan to help you get through this. You need to make sure you're giving your body the energy it needs to make it through the day while avoiding unnecessary fat causing foods that have too much sugar and calories in them. You won't get very far if you cheat on your diet, and that's something that you can start working on changing right now.
Exercise is another great way to get rid of weight as fast as possible. Even if you don't have time to go to the gym, you can do things like park far away from the store so you can do a little walking to get there. Generally you will notice that you can't really lose weight all in one day or just by working out once a month or something. You have to be on this and you have to treat it like it's your job to lose weight. If you just blow off all of your exercising, you probably won't lose much weight.
Tell your doctor if you plan to start taking things like supplements if you don't know what to expect from them. You may find that you're already on medications that mess with the way you gain and lose weight, and just adding more onto that could do some damage to you. If you find out that a medication you take is causing you some trouble with weight gain, then let a doctor know. Know that you're not going to be safe if you think you can just take a bunch of medications and get thin, this is not something a doctor will recommend at all.
Now you probably can see that drastic weight loss is something you can accomplish if you're willing to work at it. Just use this advice and when you're done you should be able to get to the weight that you want to be at when you're done with all of this.