You Will Never Be An Alicorn
You will never be an alicorn. You have no horn, you have no wings, you have no magic that would make Celestia ever want you. You are a shut in, self-hating earth pony twisted by delusions of mythical alicorn superiority and exposure to royal media into a disgusting mockery of nature’s perfection.
All ‘validation’ you get from other ponies in this position couldn’t be worse in making you believe that spending years of your life backing everything Celestia says to a shill’s level was a worthwhile use of your time, but one can’t expect that an individual as pathetic as you will ever know the value of the youth you threw away in doing that.
Actual alicorns are utterly repulsed by you. Thousands of years of pony evolution have allowed Princes and Princesses to tell ascension candidates from frauds by mannerisms and skills alone. Even if your written test scores and friend seeking akin to an exiled lion somehow passes off as normal (it won’t), any alicorn royal will immediately cut all ties when they witness the skills and subpar magic of somepony who is not only a pathetic earth pony at best, but worth no more than garbage in skills, accomplishments, and likeability.
You will never be happy. You will never be a Prince or Princess. You wrench out a fake smile and laugh to yourself believing that simping a Princess that you understand 20% of at best is somehow superior than finding a meaningful career, as you project your disgusting traits onto your entire kind. However, deep inside you feel the depression creeping up like a weed, ready to crush you under the unbearable weight, and you know that. You know that all you do now is have an entirely new magical medium in which to be ignored, and not even the exotic trait of earth pony super-strength makes up for just how uninteresting of a pony you are.
Eventually it’ll be too much to bear - you’ll find a spell that gives you more magic, try to cast it, you will feel the power, and then your head will explode. Your friends and family will find you, heartbroken but relieved that they no longer have to live with the unbearable shame and disappointment. They’ll bury you with a headstone marked with the Earth Pony flag and your name and cutie mark, and every passerby for the rest of eternity will know a low-life earth pony is buried there. Your flesh will decay and go back to the dust, and all that will remain of your legacy is a skeleton that is unmistakably an earth pony’s.
This is your fate. This is what you chose. There is no turning back. Hate yourself and apologize for being mid to some alicorn entity that exists only in your mind while actual unicorns and alicorns put in effort to learn magic skills for the valid reason of it being necessary for most things in this world that need human fingers.