Is this enough food for the day? How many calories?? PLEASSE ANSWERRR?

No you're actually ridiculously skinny. You need to eat way more than that especially because youre 15. If you don't get enough calories during puberty you could harm your body. You really need to eat more. Idk how many calories that is, you can find calories for pretty much every food on the internet. And the fact that you literally counted 6 blueberries is a red flag. You need to eat more. You should eat protein like some kind of meat to build your muscles.