I want to write a sentence that conveys the following meaning:
If I am able to do XYZ, it would be like a dream come true for me!
examples of do XYZ are: "have dinner with your favorite athlete", "click a selfie with the rockstar", "study physics together with your maths professor", etc. To generalize, it could be any action that one has been hoping to do for a long. Through this sentence, they're expressing their wish as to how their dreams would come true if they were finally able to perform their desired action.
I wish to know what different idioms/phrases/words there are that will help me convey this desire in written English. I wish to use these different idioms/phrases/words to bring greater variety to my essay.