Will i start to look slimmer and lose fat?

I have been working on getting in shape and improving my figure in the last month. I cut my calorie down to around 1300 daily and I do 300-500 calorie loss aerobic workouts 4 times a week. I've achieved moderate success with losing weight as I have lost around 18 pounds in a little over a month. I started at 186ish lbs and am down to about 167 lbs (I am 5 ft 9in and 17 years old) . But I haven't noticed change to my figure or my jeans fitting any loser. Will I start to see results soon or do i have to change something up? 

Any advice helps thanks!

Eat more and lift weights

I get how you feel. I lost around 25lbs and I didn't see any difference and my jeans fit the same. It wasn't tell I gave up and started to get the weight back that I noticed were I lost the weight. I noticed that I felt bigger even though I didn't see a difference. But don't give up, there is probably a difference yo just can't see it yet.