There's no way to calculate an average. It depends on your age, general size and build, what you eat, how much you sleep, how fidgety you are, and a few thousand other details. No two people are the same. That said, I started almost exactly where you are and lost almost exactly what you want to lose, and it took me a little over a year. However, I started running and cycling during that year. As a general rule, you'll probably lose quite a bit in the first three months or so and then find that the last 25 pounds or so take MUCH longer.
And no, there's no free program (or paid program that I know of) that can make a calorie-control diet plan using only "what you like." First of all, you're the only one who really knows that, and how long would it take you to list every single food you do and don't like? This is something that requires a human brain. You can hire a dietitian, or you can do it yourself. The second option is not just cheaper, it's better in every way.
It doesn't take very long to learn, either. Go to the Start Page here, and fill in your information. Then open the nutrition tracker and find the check box that says "Hide menu plans." That will give you a blank page. Fill it in with what you plan to eat for the day, and it will add up the calories for you. If the calories are more than your recommendation says, remove a snack or make a serving smaller. Do that every afternoon or evening for the next day's meal plans. (Some people even do a whole week at a time.) Every day, read one of the nutrition articles and think about how you could use the information to make your meals a little healthier, but don't worry too much about getting everything perfect at the start. Just be limiting calories, you're improving, so it's okay to take your time learning about the details of nutrition.
| current weight: 132.0