Running should actually give you energy, not wear you out.
You're not running for long enough or fast enough or on a steep enough incline then
I usually "warm-up" with a 5.5 km run at 12.5 km/h on a 1% incline. Let me tell you that sure sucks out a bit of energy and gets that heart rate up there.
I'm a college student and I eat a lot of junk food (chips, cookies, anything with chocolate).
Any advice for meeting my goal?
Find better recipes of junk food that are healthier. Makes your cookies yourself with whole grain oats. Use dark chocolates more than milk chocolates. Cook your own "chips" using fresh potaties, dried in the oven over big grain salt and then browned in extra virgin oil.
Calculate portions that are sane to meet a calorie deficiency every day in order to lose weight. It's ok to have a cookie or two as a desert if you're still hungry. What's not OK is to eat a whole box. This is the main problem people have. They just jump in there and eat until they are "full" which usually means over-eating.
There's nothing wrong with a little sugar and fat, the keyword being little. At the grocery store, I now purchase only boxes with individual portions pre-wrapped, so it's easier to take 1 portion out of the box and store the box back in the cup board and go eat elsewhere. There's less chance of just pigging out that way.
There's no secret or magic to losing weight. Calories in have to be inferior to Calories out. The biggest part of your calorie burning in a day is simply done by existing (your base metabolism). Exercising helps, but not as much as people think. A good run is going to burn what ? 500 calories ? Just sitting there and existing burns 1750 in day.
I don't want to go on some diet like the carb diet and stuff. But, I do want to restrict my food intake and exercise more regularly. Do you guys think its possible to drop 15 ponds in 2 months (Jan 31)?
You should aim at no more than 2 lbs per week. That's a deficit of 7000 calories for a week, which is already a lot, 1000 per day. That results in 16 lbs in 8 weeks, so would meet your goal.
I've already met my own goal in May of this year, which was a 100 lbs weight loss. The "After" picture is 6 months old already, today I've dropped another 10 lbs and gained a lot more muscle definition (5 days of gym per week along with a healthy diet makes it hard to keep the lbs on when not following any kind of weight training diet) :