I have just started this Monday and right now im 220 but I want to get down to 170 at least, I try to walk on the treadmill for around 30 minutes each day, 15 in the morning and 15 at night at an incline of around 3 and a spead of around 3.4-3.5 mph, I don't really watch what I eat except I don't eat "midnight snacks". I'm 18 years old, going to online college classes so I don't really get up until 10 or 11 AM and I rarely eat any breakfest, I eat a substantial lunch and around 7 or so that night I eat dinner. After dinner I don't eat anything and I start drinking only water, during the day I'll drink water and maybe iced tea, Since i still live with my parents, I can't choose what to eat because they buy the groceries, and with school, I don't have money to buy my own low-fat food. We do have some low-fat food that I eat such as yogurt, but not much. I have been adding my food to the food diary and last night I was only able to walk for 15 minutes and put that in my log, when I pressed end this days log or whatever it says, it said I would weigh 206 by September 25th.. Is this an accurate reading by me just walking 15 minutes a day and not really watching what I eat but just eating less and not late at night (after 9 pm - I stay up until at least 2-3 am every morning)?
Also, my parents don't know that im on a diet and I don't plan on telling them because they haven't been the best motivators in my life and it wouldn't really matter to them when they go grocery shopping anyway, so are there any other exercises I should be doing besides walking on the treadmill that I could do in my room?
Another reason why I haven't told my parents, is mainly because I dont have to, they aren't here during the day, and I also want to loose maybe 10 lbs before I start telling them what ive been doing.