My diet meal, is it healthy?

Ok i am 15 years old and im 5'7 or 5'8. Im in kicboxing and go 4 times a week (sometimes 5) for 45 mins. And i do Brazilian jiu jitsu 2 times (maybe 3 or 4 times) a week. for 1 hour and 30 mins. I just want to know is it okay to eat 2 peanut better sandwitches, toasted a day? just peanut butter, i use 100% whole wheat, Mrs Bairds bread. I also use peter pan peanut butter. I also eat with it crunchy nut cereal (a cup of it, with skim milk). Also some water with it to. So is it ok for me? Im trying to lose weight, and trying to eat healthy. Is that a good diet meal?