How can I loose weight with these problems?

I'm 13 and I'm not overweight, but I have some extra fat on me and it bothers me a lot........ I want to start working out but I easily loose motivation and become depressed.. I'm allergic to a lot of things and I have severe eczema which is a skin condition in which the skin gets very dry and itchy.. I often don't feel well for one reason or another.. (Severe eczema, extreme tiredness, severe depression, bad anxiety, and bad allergies) and not feeling well to the point I don't want to work out or feel well enough too. I've been eating and sleeping okay so I don't think that is a problem.. But when I do feel well I don't have motivation and feel depressed.. I also find it embarrassing to work out with others knowing.. So that puts it off for me too... I've been wanting to burn the fat off and become toned for a very long while now.. If I work hard I know I could start getting toned in about six weeks.. But I've been trying to get around to it for years and I just can't... Please help.. :/

Choose The Best Way To Lose Weight

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Soo I'm a community health major and I maintain a pretty good physique so I'd love to help :) -btw whatever anyone tells you, DIET is more important than exercise so if you're gonna slack on one, slack on exercise.

To stay full longer aim for high protein or high fiber.

List of things I eat:
-whole wheat everything- pasta, bread, popcorn, rice
-fiber one bars
-yogurt w granola, Greek
-tuna w light mayo
-string cheese
-strawberries (neg calorie)
- grapefruit, salad w everything, lt dressing, apples, oranges etc.
-cottage cheese
-hummus w wheat thins or other crackers
-green tea (boosts weight loss)
-soup
-while grain cereal w skim milk
- crackers w peanut butter
-lean cuisine flat bread pizza

Drink tons of water-keeps you full. Carry a water bottle around with you and just keep sipping and if you don't like water, add crystal lite or whatever.

Just some ideas! Really helped me maintain my weight. Calculate your BMR to see where you're at and TDEE and take away 500 calories from TDEE and you should be good to go on losing half a pound a week! I just love helping ppl look and feel better haha.

Yoga will help tone ya up and you can do it in the comfort of your own home.