Not getting enough food in my diet

Both my parents work until midnight most nights and I never get a chance to eat. I’m a 15 year old who goes to summer school has 2 extra curricular camps and worksout so by the time midnight comes around i am dead asleep. The problem comes in that I only eat breakfast each day since my parents can’t buy or cook me anything and we rarely ever have groceries to cook stuff with. I eat apples midday but that isn’t enough to sustain my life. I feel like I have little energy because of this and it’s killing both my productivity and just actual time for me to enjoy myself since I’m too tired . Are there any dietary habits I should change i.e. eating 2 eggs for breakfast instead of 1 or whenever I do get a chance to eat a meal that isn’t breakfast do I just eat a lot more then?

TLDR: I rarely ever get a chance to eat lunch and dinner and it’s eating away at my enjoyment in life, anyway I can maximize snacks and my breakfast?

Not getting enough food in my diet