Hi, and welcome to the forum! I'll give you a small tidbit about me, and give you some advice.
I'm 21, 5'11.5", and as of around March I weighed a whopping 245 or so. Today, I'm at 209 and still losing. Of that 36 lbs I've lost, about 18 of it was in the past two months (September included).
But, here are some tips, that will help you out.
1. Go to any online site and find out your BMR and RMR. Then, based upon your activity level, find out how many
calories you are burning every day by being alive (it is an estimate).
2. Begin counting
calories. This is much easier than it seems. You needn't weigh meat before a meal, or measure a cup of cereal. Just pour a moderate portion and look at the label on the back. Add them up as you go throughout the day. Make sure this number is BELOW your RMR.
3. Milk for breakfast, dinner if you want it. Water every other time. Water at work, water at the
gym, water between meals. If you don't like water, there's an alternative: water. Water keeps you satisfied and keeps your metabolism running. It REALLY helps with the next point.
4. Shrink your stomach: This is a 1-2 week process and you will hate it. When your
body grows accustomed to eating a lot, you are able to eat a lot more. It doesn't like it when you start feeding it less. For about 2 weeks or so, you will feel hungry. But, it's a test of will power, and if you drink plenty of water during these times, it'll help tremendously.
5. Lift
Weights: Low weight, high reps. Gets your heart pumping, still builds a little muscle, and it makes it so that all the weight you lose over any given week is
fat and not muscle.
6. Run/Walk: If you can run, run. Believe it or not, you can probably do a lot more than you think you can. I went out the other day and just kept putting one foot in front of the other. 4 miles went by. That's the longest I've ever run in my life. The next day: 4.5 miles. Just keep putting one foot in front of the other until YOUR LEGS CANNOT CARRY YOU ANYMORE. Your head will want to quit long before your legs have to. I'm not saying collapse, I'm just saying go to the point where you have to walk home. If you can't run, walk 3-5 miles a day. It's relaxing, burns a lot of
calories, and gives you time to think about the awesome
body you're going to get from all the walking.
7. This is most important. Find a source of inspiration and remind yourself of that every day. Always keep your eye on the prize. If you mess up one day, that day is over, you start fresh every new day and you can make all the right decisions. Never, under any circumstance give up. There is always hope, until the day you die.
Good luck!