Please help me understand

Hi, I am a younger male that finally wanted to get rid of my excess fat. I started at a weight of 180 lbs and a height of 5 feet 11 inches. I have lifted weights regularly for the last 2 years, (although i don't lift during the summer often.) I currently am in basketball and I have practice or games every week day and sometimes weekends so I am a fairly active person. I started counting calories at the start of December. After doing the calculations, I gave myself a goal of about 2500 calories. I am now 7 weeks into this and I weigh 160. I have really tried to maintain muscle and although I have noticed a small decrease in my bench and overhead press ( like 1-2 less reps at my moderate rep range) I have overall maintained my strength in lifting overall. I have been reading and it sounds like I have lost this weight too quickly compared to how I should be in a healthy range. In fact, In some calorie calculators it says I am eating at my maintenance levels. But I am still consistently losing weight. I have also lost about 2 inches from my hips and waist, but I personally can't see the difference. I am very confused overall because I am a beginner at this. Any and all responses are appreciated!