Is my exercising and dieting plans good?

Hey there, I'm a 15 year old boy and since the start of June I have been exercising and watching what I eat everyday! It's been quite a success, I was 215 (believe it or not) and now I'm 150! So now i wanna maintain this weight and just wanna know if my exercise and dieting plans are any good! :)

School Days (Mon-Thurs)

Breakfast Options:

1. Oatmeal with 1 tbsp of Brown Sugar and Juice or Milk

2. 1 piece of toast and Juice or Milk

3. Healthy Cereal with Milk and Juice

Lunch:

Banana and Apple with Juice or Water

Dinner:

Basically something light, not too much meat and also at least have veggies or some salad at every dinner serving

Dessert (only sometimes):

1. Couple scoops of plain light Ice Cream

2. Little fruit mixture bowl (Half a banana and some raspberries with a tiny bit of milk mixed)

3. If on special occasions, a little piece of cake

-Now for Fridays I usually go to Tim Horton's or McDonald's for Breakfast BUT I get the healthiest food I can which is a Small Yogurt Parfait and a Small double-double coffee. Lunch I sometimes buy something from the Cafeteria at my school which will either be a small Caesar Salad or some tzatziki sauce and bread.

-Weekends I would sometimes go out for breakfast but order 2 bacon and 2 eggs with toast and hash browns, with a Coffee. I don't have lunch and than have dinner. When I sometimes go out for dinner, I tend to look for something light and healthy

-Weekdays where I don't have School, I usually would stick with the regular dieting plan when I do have school, maybe sometimes have just eggs and toast. Don't have lunch that much and than have dinner and sometimes dessert.

-Vacations I watch what I eat.

Now my exercising routines:

School weeks (Mon-Fri):

-After Breakfast I would walk too my bus in the morning which takes about 8 minutes

-When schools done, I would go home and go on the treadmill (The main thing i used to loss all the weight. No joke) for about 15 minutes. Now I go on the second highest incline and go on a fast walk, almost jogging paste (Incline is 9.5 and speed is 4.4). After that I would have dinner, wait for about an hour or 2 too let the food digest and go back on the treadmill, this time for 30 minutes. If I had dessert that day, I would go for about 45 Minutes

-On days I don't have school, I would go on the treadmill in the Morning before breakfast for 30 Minutes, and than after dinner time for 30 minutes.

-Sundays, I would go to the gym with my friends to workout on Arms, Legs, and torso muscles for a good hour or 2.

-Vacations, I don't worry as much about exercising, but I do look for gyms I can go too and workout for about an hour or 2 in the mornings, and nights

So yeah, that's basically it :P alotta reading I know, I just wanna know If i'm doing good and if there's anything i should adjust just let me know! Thanks :)