That's a pretty good diet and your weight is fine; you could even gain 6-8 lbs. Boxed cereal and english muffins, so you could avoid those. Coffee is carcinogenic (cancer-causing) so drink tea or juice.
Here’s a good low-carb food/exercise plan:
Breakfast: Cook 9-grain cereal (from health food store) in water with rolled oats and wheat bran. Make a pot of it on weekends and nuke 1 cup each morning. Then stir in low fat milk or yogurt, banana, walnuts and berries. Drink hot Ovaltine. Breakfast should be your largest meal of the day to raise blood sugar level which falls during the night.
Lunch: Egg, tuna or turkey sandwich on multi-grain (not just whole wheat) bread with bean or alfalfa sprouts, yogurt, fresh fruit. If you had meat loaf for dinner, bring a meat loaf sandwich on whole grain bread (NO mayo). On cold days, a squatty thermos of hot chili, split peas with ham, or beef stew.
Snacks: Fresh (not canned) fruit. Nothing ever from a vending machine.
Dinner: salad with white meat chicken and fresh (not canned) veggies: tomatoes, 2 kinds of lettuce, 2 kinds of shredded cabbage, shredded or sliced carrots, alfalfa or bean sprouts, zucchini, green or red peppers, hard boiled eggs, brussels sprouts, broccoli, cauliflower, tofu, cottage cheese, spinach...Instead of dressing, squeeze 1/4 tomato over it.
Or homemade bean/vegetable soups; great way to recycle leftovers.
Or grilled fish with steamed veggies.
Or omelet: In blender, whip together eggs, tofu, cottage cheese, onions, garlic powder. Cook with mushrooms, chopped tomatoes and green or red peppers.
Avoid junk food, fast foods, pastries, desserts, anything with sugar (cancer cells feed on sugar), gluten, syrup (even canned fruit in syrup), peanut butter, fat/grease (pork, wieners, chops, bacon, salami, pizza, chips, fries), pasta, potatoes, ramen, popcorn, white bread, rice, canned veggies, ice cream (it’s lard + chemicals), soda (loaded with toxins), chips, tobacco, alcohol (kills brain cells) and coffee (carcinogenic). No oil except olive and mac nut.
To keep your skin clear, drink water, tea, unsweetened veggie and fruit juice.
Join a gym; they have all the equipment and staff to show you how to use it to get the look you want to achieve, but you have to ask them. Much cheaper than buying your own equipment. Go hiking, biking, jogging, bowling, swimming, rowing, jump rope, play tennis, badminton, volleyball, soccer, jumping jacks, lift weights, trampoline? To tone your tummy, do sit ups, push ups, pull ups, leg lifts, butt raises and crunches.
For more energy, take Super B complex.