Would you/your parents be open to purchasing more plant protein sources? This could be foods like beans, soy milk, or something like a pea protein powder. 

Here's some more examples: https://www.chhs.colostate.edu/krnc/monthly-blog/plant-based-protein-a-simple-guide-to-getting-enough/

Hey, hi! I hope you are doing alright and not stressing too much about this. Definitely, cutting out eggs would be good, but is it affordable and accessible for you to go vegan gradually at the moment? If yes, do so. If not, take your time please :)

Since you are interested, check these out: The Best Type of Protein, and How Much You Really Need  HOW NOT TO DIE, an instant New York Times Best Seller (lmk if you need more resources!)
(PS: you seem to be doing great in your life! Kudos :), good luck for everything you do! Cheers!)
 

Thanks for sharing, S, and for thinking about how to help the world from so early on! I am very uncertain, but I estimate eating eggs benefits animals.

I estimate replacing chicken eggs from hens in cages with plant-based food requiring as much cropland as the hens’ feed increases or decreases the welfare of arthropods 93.2 (= 3.39*27.5) times as much as it increases the welfare of hens [depending on whether wild arthropods have positive or negative lives].

My best guess is that wild arthropods have negative lives (with more suffering than happiness), so I estimate the replacement above decreases the welfare of arthropods 93.2 times as much as it increases the welfare of hens.

In order to benefit both farmed and wild animals, you could try to get eggs from hens living positive lives. These tend to require more feed, and therefore decrease more the number of wild animals, which I guess is good (with high uncertainty).

Egg producers vary in their treatment of hens; as eggs are a major part of your diet, I think it's worth looking into whether there's a brand that meets your ethical standards you could switch to before deciding to cut them out entirely.

What about cutting out eggs and adding some other source of protein, like beef?

Replacing egg protein is not hard and it's not going to hurt your sport performance or future academic prospects. 

Go see a nutritionist who specializes in vegan nutrition. Don't get 100% of your nutrition advice from the internet, just like you should not get 100% of your medical advice from the internet.