I have a strict weekly training plan but no diet?

I’m a teenager and weigh in around 60-65kg . And currently have a very strict sport training plan.

Just so you get a rough idea, I’ll run through my week. Starting with a run, between a 6k -10k on two of the weekdays, and also juggle that with boxing on the other two weekdays I have spare. In the weekend I do my long run, which at the moment is between 15k and 20k. I also do strength training with the running/cardio.

NOTE: I have two rest days in a week.

With all of this currently, I have no diet regime. I have no experience with diets and don’t know how many meals I should and shouldn’t eat a day. So if any of you’s could help me, it would be much appreciated.

I have a strict weekly training plan but no diet?