Weight Loss Training and Diet good enough?

Hello, a while back I posted a question about how to lose weight, I am slowly losing but surely. I just wanted to check with any health nuts or guru's on how my training and diet are.
Training
Jog: Not very long but I keep a fast pace.
Weight Training: Home Gym: I lift 4 weights that are pretty heavy, I do 2 sets of 20, then work on my calfs and legs with the leg attachment. I do 1 set of 10 lifts on my legs. Then I do 20 sit ups for 3 times and 5 pushups 2 times


Diet:
Breakfast: Usually some rye toast with cheese on it and a banana or apple with some water or juice.
Lunch: Usually a banana, some fruit snacks, a sandwhich and a granola bar.
Supper: *Usually I slip up after I come home from school by chowing down on Dorito's I came home today and ate 3 chips before deciding to change and I went out for a jog. But for supper, usually all the foodgroups.

Yay or nay? Help me make changes so I can lose weight and eventually work on my abdomin and reach that six pack!!!!!!!!!!!

The diet lacks enough protein. You are eating lots of carbohydrates, but you didn't list one good protein source, and there are hardly any healthy fats listed either. If your goal is to see your abdominal muscles, you will have to decrease body fat. Weight training is a great way to do this along with a clean diet. I would suggest putting a bit more effort into the legs. One set won't cut it. At least 2, and if possible 4-6. If you are able to lift the weight you are using twenty times, the weight is not heavy enough to get you to your goal. Diet, of course, is number one.

You need a proper consultation with a dietitian and a diet scheme designed esp for you.You can find it on
www.wellness-diet4me.co.uk Leave your phone number and you will definitely receive a call from a professionalist.Good Luck