can someone help me with getting into a static x concert?

hello, this is my first time in reddit itself and i just made this account because im desperate to getting help on how to get 3 tickets for a later concert for my little sisters birthday gift cause we’ve never actually went to a concert before and no one near me has any advice cause they usually get help from their adults, so i decided since people ask questions here and get answers from a lot of people, i might be asking in the wrong community? or something, im not sure im really new to this and i just want my sis to have an amazing birthday 😖